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  <attribute name="Conventions" value="CF-1.8, ACDD-1.3" />
  <attribute name="featureType" value="timeSeries" />
  <attribute name="title" value="VOC (volatile organic compounds) at London - Honor Oak Park" />
  <attribute name="summary" value="VOC (volatile organic compounds) at London - Honor Oak Park. These measurements are gathered as a part of the following projects CAMPAIGN and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: ['1-2-3-trimethylbenzene in air (mole_fraction_of_123_trimethylbenzene_in_air)', '1-2-3-trimethylbenzene in air (mass_concentration_of_1-2-3-trimethylbenzene_in_air)', '1-2-4-trimethylbenzene in air (mole_fraction_of_124_trimethylbenzene_in_air)', '1-2-4-trimethylbenzene in air (mass_concentration_of_1-2-4-trimethylbenzene_in_air)', '1-3-5-trimethylbenzene in air (mole_fraction_of_135_trimethylbenzene_in_air)', '1-3-5-trimethylbenzene in air (mass_concentration_of_1-3-5-trimethylbenzene_in_air)', '1-3-butadiene in air (mass_concentration_of_1-3-butadiene_in_air)', '1-3-butadiene in air (mole_fraction_of_13_butadiene_in_air)', '1-butene in air (mass_concentration_of_1-butene_in_air)', '1-butene in air (mole_fraction_of_1_butene_in_air)', '1-pentene in air (mass_concentration_of_1-pentene_in_air)', '1-pentene in air (mole_fraction_of_1_pentene_in_air)', '2-2-4-trimethylpentane in air (mass_concentration_of_2-2-4-trimethylpentane_in_air)', '2-2-4-trimethylpentane in air (mole_fraction_of_224_trimethylpentane_in_air)', '2-methylbutane in air (mass_concentration_of_2-methylbutane_in_air)', '2-methylbutane in air (mole_fraction_of_2_methylbutane_in_air)', '2-methylpentane in air (mass_concentration_of_2-methylpentane_in_air)', '2-methylpentane in air (mole_fraction_of_2_methylpentane_in_air)', '2-methylpropane in air (mass_concentration_of_2-methylpropane_in_air)', '2-methylpropane in air (mole_fraction_of_2_methylpropane_in_air)', '2-methylpropene in air (mole_fraction_of_2_methylpropene_in_air)', '3-methylpentane in air (mass_concentration_of_3-methylpentane_in_air)', '3-methylpentane in air (mole_fraction_of_3_methylpentane_in_air)', 'benzene in air (mole_fraction_of_benzene_in_air)', 'cis-2-butene in air (mass_concentration_of_cis-2-butene_in_air)', 'cis-2-butene in air (mole_fraction_of_cis_2_butene_in_air)', 'cyclo-pentane in air (mole_fraction_of_cyclo_pentane_in_air)', 'ethanal in air (mole_fraction_of_ethanal_in_air)', 'ethanal in air (mass_concentration_of_ethanal_in_air)', 'ethane in air (mass_concentration_of_ethane_in_air)', 'ethane in air (mole_fraction_of_ethane_in_air)', 'ethanol in air (mole_fraction_of_ethanol_in_air)', 'ethanol in air (mass_concentration_of_ethanol_in_air)', 'ethene in air (mole_fraction_of_ethene_in_air)', 'ethylbenzene in air (mole_fraction_of_ethylbenzene_in_air)', 'ethyne in air (mole_fraction_of_ethyne_in_air)', 'm-xylene in air (mass_fraction_of_m_xylene_in_air)', 'n-butane in air (mass_concentration_of_n-butane_in_air)', 'n-butane in air (mole_fraction_of_butane_in_air)', 'n-hexane in air (mass_concentration_of_n-hexane_in_air)', 'n-hexane in air (mole_fraction_of_hexane_in_air)', 'n-nonane in air (mole_fraction_of_n-nonane_in_air)', 'n-nonane in air (mole_fraction_of_nonane_in_air)', 'n-pentane in air (mass_concentration_of_n-pentane_in_air)', 'n-pentane in air (mole_fraction_of_pentane_in_air)', 'o-xylene in air (mole_fraction_of_o-xylene_in_air)', 'o-xylene in air (mole_fraction_of_o_xylene_in_air)', 'p-xylene in air', 'propane in air (mass_concentration_of_propane_in_air)', 'propane in air (mole_fraction_of_propane_in_air)', 'propanone in air (mole_fraction_of_propanone_in_air)', 'propanone in air (mass_concentration_of_propanone_in_air)', 'propene in air (mole_fraction_of_propene_in_air)', 'toluene in air (mole_fraction_of_toluene_in_air)', 'trans-2-butene in air (mass_concentration_of_trans-2-butene_in_air)', 'trans-2-butene in air (mole_fraction_of_trans_2_butene_in_air)', 'trans-2-pentene in air (mass_concentration_of_trans-2-pentene_in_air)', 'trans-2-pentene in air (mole_fraction_of_trans_2_pentene_in_air)']" />
  <attribute name="keywords" value="&quot;London - Honor Oak Park&quot; GB0023U 1-2-3-trimethylbenzene 1-2-4-trimethylbenzene 1-3-5-trimethylbenzene 1-3-butadiene 1-butene 1-pentene 2-2-4-trimethylpentane 2-methylbutane 2-methylpentane 2-methylpropane 2-methylpropene 3-methylpentane benzene cis-2-butene cyclo-pentane ethanal ethane ethanol ethene ethylbenzene ethyne m-xylene n-butane n-hexane n-nonane n-pentane o-xylene p-xylene propane propanone propene toluene trans-2-butene trans-2-pentene air CAMPAIGN mole_fraction_of_123_trimethylbenzene_in_air mass_concentration_of_1-2-3-trimethylbenzene_in_air mole_fraction_of_124_trimethylbenzene_in_air mass_concentration_of_1-2-4-trimethylbenzene_in_air mole_fraction_of_135_trimethylbenzene_in_air mass_concentration_of_1-3-5-trimethylbenzene_in_air mass_concentration_of_1-3-butadiene_in_air mole_fraction_of_13_butadiene_in_air mass_concentration_of_1-butene_in_air mole_fraction_of_1_butene_in_air mass_concentration_of_1-pentene_in_air mole_fraction_of_1_pentene_in_air mass_concentration_of_2-2-4-trimethylpentane_in_air mole_fraction_of_224_trimethylpentane_in_air mass_concentration_of_2-methylbutane_in_air mole_fraction_of_2_methylbutane_in_air mass_concentration_of_2-methylpentane_in_air mole_fraction_of_2_methylpentane_in_air mass_concentration_of_2-methylpropane_in_air mole_fraction_of_2_methylpropane_in_air mole_fraction_of_2_methylpropene_in_air mass_concentration_of_3-methylpentane_in_air mole_fraction_of_3_methylpentane_in_air mole_fraction_of_benzene_in_air mass_concentration_of_cis-2-butene_in_air mole_fraction_of_cis_2_butene_in_air mole_fraction_of_cyclo_pentane_in_air mole_fraction_of_ethanal_in_air mass_concentration_of_ethanal_in_air mass_concentration_of_ethane_in_air mole_fraction_of_ethane_in_air mole_fraction_of_ethanol_in_air mass_concentration_of_ethanol_in_air mole_fraction_of_ethene_in_air mole_fraction_of_ethylbenzene_in_air mole_fraction_of_ethyne_in_air mass_fraction_of_m_xylene_in_air mass_concentration_of_n-butane_in_air mole_fraction_of_butane_in_air mass_concentration_of_n-hexane_in_air mole_fraction_of_hexane_in_air mole_fraction_of_n-nonane_in_air mole_fraction_of_nonane_in_air mass_concentration_of_n-pentane_in_air mole_fraction_of_pentane_in_air mole_fraction_of_o-xylene_in_air mole_fraction_of_o_xylene_in_air mass_concentration_of_propane_in_air mole_fraction_of_propane_in_air mole_fraction_of_propanone_in_air mass_concentration_of_propanone_in_air mole_fraction_of_propene_in_air mole_fraction_of_toluene_in_air mass_concentration_of_trans-2-butene_in_air mole_fraction_of_trans_2_butene_in_air mass_concentration_of_trans-2-pentene_in_air mole_fraction_of_trans_2_pentene_in_air" />
  <attribute name="id" value="ZKHT-9EQH.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="CAMPAIGN" />
  <attribute name="acknowledgement" value="" />
  <attribute name="doi" value="https://doi.org/10.48597/ZKHT-9EQH" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Hopkins, J., CAMPAIGN, 2025, VOC (volatile organic compounds) at London - Honor Oak Park, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/ZKHT-9EQH" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="GB09L &quot;Wolfson Atmospheric Chemistry Laboratory&quot; WACL &quot;Innovation Way&quot; Heslington &quot;YO10 5DD&quot; York &quot;United Kingdom&quot;" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2026-02-11T15:15:47.493305Z" />
  <attribute name="date_metadata_modified" value="2025-01-13T00:00:00Z" />
  <attribute name="creator_name" value="James Hopkins" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value="jim.hopkins@york.ac.uk" />
  <attribute name="creator_institution" value="&quot;Wolfson Atmospheric Chemistry Laboratory, Department of Chemistry, WACL&quot;" />
  <attribute name="contributor_name" value="Marvin Dufresne" />
  <attribute name="contributor_role" value="data submitter" />
  <attribute name="publisher_type" value="institution" />
  <attribute name="publisher_name" value="NILU - Norwegian Institute for Air Research, ATMOS, EBAS" />
  <attribute name="publisher_institution" value="NILU - Norwegian Institute for Air Research, ATMOS, EBAS" />
  <attribute name="publisher_email" value="ebas@nilu.no" />
  <attribute name="publisher_url" value="https://www.nilu.no/" />
  <attribute name="geospatial_bounds" value="POINT Z (-0.037387 51.449699 31)" />
  <attribute name="geospatial_lat_min" type="double" value="51.449699" />
  <attribute name="geospatial_lat_max" type="double" value="51.449699" />
  <attribute name="geospatial_lon_min" type="double" value="-0.037387" />
  <attribute name="geospatial_lon_max" type="double" value="-0.037387" />
  <attribute name="geospatial_vertical_min" type="double" value="31.0" />
  <attribute name="geospatial_vertical_max" type="double" value="31.0" />
  <attribute name="geospatial_vertical_positive" value="up" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
  <attribute name="time_coverage_start" value="2024-09-05T05:59:00Z" />
  <attribute name="time_coverage_end" value="2024-09-30T23:44:00Z" />
  <attribute name="time_coverage_duration" value="P0000-00-25T17:45:00" />
  <attribute name="time_coverage_resolution" value="P0000-00-00T00:00:00" />
  <attribute name="timezone" value="UTC" />
  <attribute name="ebas_data_definition" value="EBAS_1.1" />
  <attribute name="ebas_data_license" value="" />
  <attribute name="ebas_citation" value="Hopkins, J., CAMPAIGN, 2025, VOC (volatile organic compounds) at London - Honor Oak Park, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/ZKHT-9EQH" />
  <attribute name="ebas_set_type_code" value="TI" />
  <attribute name="ebas_timezone" value="UTC" />
  <attribute name="ebas_file_name" value="ZKHT-9EQH.nc" />
  <attribute name="ebas_represents_doi" value="https://doi.org/10.48597/ZKHT-9EQH" />
  <attribute name="ebas_contains_doi" value="https://doi.org/10.48597/ZKHT-9EQH" />
  <attribute name="ebas_file_creation" value="2026-05-22T01:59:21.071998Z" />
  <attribute name="ebas_export_state" value="2026-02-11T15:15:47.493305Z" />
  <attribute name="ebas_export_filter" value="exclude-900,exclude-invalid" />
  <attribute name="ebas_startdate" value="2024-09-05T05:59:00.000000Z" />
  <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
  <attribute name="ebas_version" value="1" />
  <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
  <attribute name="ebas_data_level" value="2" />
  <attribute name="ebas_period_code" value="26d" />
  <attribute name="ebas_resolution_code" value="68mn" />
  <attribute name="ebas_sample_duration" value="25mn" />
  <attribute name="ebas_station_code" value="GB0023U" />
  <attribute name="ebas_platform_code" value="GB0023S" />
  <attribute name="ebas_station_name" value="London - Honor Oak Park" />
  <attribute name="ebas_station_land_use" value="Urban park" />
  <attribute name="ebas_station_setting" value="Urban and center city" />
  <attribute name="ebas_station_latitude" type="double" value="51.449699" />
  <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
  <attribute name="ebas_station_altitude" value="31.0 m" />
  <attribute name="ebas_measurement_height" value="12.0 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_matrix" value="air" />
  <attribute name="ebas_laboratory_code" value="GB09L" />
  <attribute name="ebas_instrument_type" value="online_gc" />
  <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
  <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
  <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
  <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
  <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
  <attribute name="ebas_calibration_scale" value="NPL" />
  <attribute name="ebas_calibration_standard_id" value="D618280" />
  <attribute name="ebas_secondary_standard_id" value="D618327_20240422" />
  <attribute name="ebas_inlet_type" value="None--open-face filter" />
  <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
  <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
  <attribute name="ebas_measurement_uncertainty_expl" value="Includes reproducibility (precision) and systematic errors (accuracy). Ref:http://www.atmos-meas-tech.net/8/2715/2015/" />
  <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
  <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
  <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
  <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
  <attribute name="ebas_framework_name" value="" />
  <attribute name="ebas_framework_description" value="" />
  <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
  <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
  <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
  <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
  <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
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  <attribute name="Metadata_Conventions" value="Unidata Dataset Discovery v1.0" />
  <attribute name="geospatial_lat_units" value="degrees_north" />
  <attribute name="geospatial_lon_units" value="degrees_east" />
  <attribute name="standard_name_vocabulary" value="CF-1.7, ACDD-1.3" />
  <attribute name="history" value="None" />
  <attribute name="creator_url" value="ebas.nilu.no" />
  <attribute name="_CoordSysBuilder" value="ucar.nc2.internal.dataset.conv.CF1Convention" />
  <dimension name="time" length="352" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="1" />
  <dimension name="qc_1_2_3_trimethylbenzene_pmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_1_2_3_trimethylbenzene_ug_per_m3_amean_flags" length="1" />
  <dimension name="qc_1_2_3_trimethylbenzene_pmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_1_2_3_trimethylbenzene_ug_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_1_2_4_trimethylbenzene_pmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_1_2_4_trimethylbenzene_ug_per_m3_amean_flags" length="1" />
  <dimension name="qc_1_2_4_trimethylbenzene_pmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_1_2_4_trimethylbenzene_ug_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_1_3_5_trimethylbenzene_pmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_1_3_5_trimethylbenzene_ug_per_m3_amean_flags" length="1" />
  <dimension name="qc_1_3_5_trimethylbenzene_pmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_1_3_5_trimethylbenzene_ug_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_1_3_butadiene_ng_per_m3_amean_flags" length="1" />
  <dimension name="qc_1_3_butadiene_pmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_1_3_butadiene_ng_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_1_3_butadiene_pmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_1_butene_ng_per_m3_amean_flags" length="1" />
  <dimension name="qc_1_butene_pmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_1_butene_ng_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_1_butene_pmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_1_pentene_ng_per_m3_amean_flags" length="1" />
  <dimension name="qc_1_pentene_pmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_1_pentene_ng_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_1_pentene_pmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_2_2_4_trimethylpentane_ng_per_m3_amean_flags" length="1" />
  <dimension name="qc_2_2_4_trimethylpentane_pmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_2_2_4_trimethylpentane_ng_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_2_2_4_trimethylpentane_pmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_2_methylbutane_ng_per_m3_amean_flags" length="1" />
  <dimension name="qc_2_methylbutane_pmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_2_methylbutane_ng_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_2_methylbutane_pmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_2_methylpentane_ng_per_m3_amean_flags" length="1" />
  <dimension name="qc_2_methylpentane_pmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_2_methylpentane_ng_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_2_methylpentane_pmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_2_methylpropane_ng_per_m3_amean_flags" length="1" />
  <dimension name="qc_2_methylpropane_pmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_2_methylpropane_ng_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_2_methylpropane_pmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_2_methylpropene_amean_flags" length="1" />
  <dimension name="qc_2_methylpropene_ExpUnc2s_flags" length="1" />
  <dimension name="qc_3_methylpentane_ng_per_m3_flags" length="1" />
  <dimension name="qc_3_methylpentane_pmol_per_mol_flags" length="1" />
  <dimension name="qc_benzene_ng_per_m3_amean_flags" length="1" />
  <dimension name="qc_benzene_pmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_benzene_ng_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_benzene_pmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_cis_2_butene_ng_per_m3_amean_flags" length="1" />
  <dimension name="qc_cis_2_butene_pmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_cis_2_butene_ng_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_cis_2_butene_pmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_cyclo_pentane_amean_flags" length="1" />
  <dimension name="qc_cyclo_pentane_ExpUnc2s_flags" length="1" />
  <dimension name="qc_ethanal_nmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_ethanal_ug_per_m3_amean_flags" length="1" />
  <dimension name="qc_ethanal_nmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_ethanal_ug_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_ethane_ng_per_m3_amean_flags" length="1" />
  <dimension name="qc_ethane_pmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_ethane_ng_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_ethane_pmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_ethanol_nmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_ethanol_ug_per_m3_amean_flags" length="1" />
  <dimension name="qc_ethanol_nmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_ethanol_ug_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_ethene_amean_flags" length="1" />
  <dimension name="qc_ethene_ExpUnc2s_flags" length="1" />
  <dimension name="qc_ethylbenzene_ng_per_m3_amean_flags" length="1" />
  <dimension name="qc_ethylbenzene_pmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_ethylbenzene_ng_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_ethylbenzene_pmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_ethyne_amean_flags" length="1" />
  <dimension name="qc_ethyne_ExpUnc2s_flags" length="1" />
  <dimension name="qc_m_xylene_amean_flags" length="1" />
  <dimension name="qc_m_xylene_ExpUnc2s_flags" length="1" />
  <dimension name="qc_n_butane_ng_per_m3_amean_flags" length="1" />
  <dimension name="qc_n_butane_pmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_n_butane_ng_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_n_butane_pmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_n_hexane_ng_per_m3_amean_flags" length="1" />
  <dimension name="qc_n_hexane_pmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_n_hexane_ng_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_n_hexane_pmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_n_nonane_ng_per_m3_amean_flags" length="1" />
  <dimension name="qc_n_nonane_pmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_n_nonane_ng_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_n_nonane_pmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_n_pentane_ng_per_m3_amean_flags" length="1" />
  <dimension name="qc_n_pentane_pmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_n_pentane_ng_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_n_pentane_pmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_o_xylene_ng_per_m3_amean_flags" length="1" />
  <dimension name="qc_o_xylene_pmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_o_xylene_ng_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_o_xylene_pmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_p_xylene_amean_flags" length="1" />
  <dimension name="qc_p_xylene_ExpUnc2s_flags" length="1" />
  <dimension name="qc_propane_ng_per_m3_amean_flags" length="1" />
  <dimension name="qc_propane_pmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_propane_ng_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_propane_pmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_propanone_nmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_propanone_ug_per_m3_amean_flags" length="1" />
  <dimension name="qc_propanone_nmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_propanone_ug_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_propene_amean_flags" length="1" />
  <dimension name="qc_propene_ExpUnc2s_flags" length="1" />
  <dimension name="qc_toluene_ng_per_m3_amean_flags" length="1" />
  <dimension name="qc_toluene_pmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_toluene_ng_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_toluene_pmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_trans_2_butene_ng_per_m3_amean_flags" length="1" />
  <dimension name="qc_trans_2_butene_pmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_trans_2_butene_ng_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_trans_2_butene_pmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_trans_2_pentene_ng_per_m3_amean_flags" length="1" />
  <dimension name="qc_trans_2_pentene_pmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_trans_2_pentene_ng_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_trans_2_pentene_pmol_per_mol_ExpUnc2s_flags" length="1" />
  <group name="CFMetadata">
    <attribute name="time_coverage_start" value="2024-09-05T06:11:29Z" />
    <attribute name="time_coverage_end" value="2024-09-30T23:31:30Z" />
    <attribute name="time_coverage_units" value="seconds" />
    <attribute name="time_coverage_resolution" value="6331.0" />
    <attribute name="time_coverage_duration" value="P0Y0M25DT17H20M0.001S" />
  </group>
  <group name="NCISOMetadata">
    <attribute name="metadata_creation" value="2026-06-05" />
    <attribute name="nciso_version" value="2.4.8" />
  </group>
  <variable name="time_bnds" shape="time tbnds" type="double">
    <attribute name="long_name" value="time bounds for measurement" />
  </variable>
  <variable name="metadata_time_bnds" shape="metadata_time tbnds" type="double">
    <attribute name="long_name" value="time bounds for ebas metadata intervals" />
  </variable>
  <variable name="v_1_2_3_trimethylbenzene_pmol_per_mol_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_123_trimethylbenzene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="qc_1_2_3_trimethylbenzene_pmol_per_mol_amean meta_1_2_3_trimethylbenzene_pmol_per_mol_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="1-2-3-trimethylbenzene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
    <attribute name="ebas_secondary_standard_id" value="D618327_20240422" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
    <attribute name="ebas_detection_limit" value="1.0 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Includes reproducibility (precision) and systematic errors (accuracy). Ref:http://www.atmos-meas-tech.net/8/2715/2015/" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/1-2-3-trimethylbenzeneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="1,2,3-trimethylbenzene amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gaschromatograph-online" />
    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
  </variable>
  <variable name="qc_1_2_3_trimethylbenzene_pmol_per_mol_amean" shape="qc_1_2_3_trimethylbenzene_pmol_per_mol_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_1_2_3_trimethylbenzene_pmol_per_mol_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_1_2_3_trimethylbenzene_ug_per_m3_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_1-2-3-trimethylbenzene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="qc_1_2_3_trimethylbenzene_ug_per_m3_amean meta_1_2_3_trimethylbenzene_ug_per_m3_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="1-2-3-trimethylbenzene" />
    <attribute name="ebas_unit" value="ug/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
    <attribute name="ebas_secondary_standard_id" value="D618327_20240422" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="0.0 ug/m3" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Includes reproducibility (precision) and systematic errors (accuracy). Ref:http://www.atmos-meas-tech.net/8/2715/2015/" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube -- Data converted on export from EBAS from 'pmol/mol' to 'ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.005. Detection limit converted from '1.0 pmol/mol' to '0.0 ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.005." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/1-2-3-trimethylbenzenemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="1,2,3-trimethylbenzene mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gaschromatograph-online" />
    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
  </variable>
  <variable name="qc_1_2_3_trimethylbenzene_ug_per_m3_amean" shape="qc_1_2_3_trimethylbenzene_ug_per_m3_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_1_2_3_trimethylbenzene_ug_per_m3_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_1_2_3_trimethylbenzene_pmol_per_mol_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_123_trimethylbenzene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="qc_1_2_3_trimethylbenzene_pmol_per_mol_ExpUnc2s meta_1_2_3_trimethylbenzene_pmol_per_mol_ExpUnc2s" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="1-2-3-trimethylbenzene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
    <attribute name="ebas_secondary_standard_id" value="D618327_20240422" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Includes reproducibility (precision) and systematic errors (accuracy). Ref:http://www.atmos-meas-tech.net/8/2715/2015/" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/1-2-3-trimethylbenzeneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="1,2,3-trimethylbenzene amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gaschromatograph-online" />
    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
  </variable>
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    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
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  <variable name="meta_1_2_3_trimethylbenzene_pmol_per_mol_ExpUnc2s" shape="metadata_time" type="String">
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    <attribute name="standard_name" value="mass_concentration_of_1-2-3-trimethylbenzene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="qc_1_2_3_trimethylbenzene_ug_per_m3_ExpUnc2s meta_1_2_3_trimethylbenzene_ug_per_m3_ExpUnc2s" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="1-2-3-trimethylbenzene" />
    <attribute name="ebas_unit" value="ug/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
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    <attribute name="ebas_calibration_scale" value="NPL" />
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    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
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    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
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    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube -- Data converted on export from EBAS from 'pmol/mol' to 'ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.005." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/1-2-3-trimethylbenzenemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="1,2,3-trimethylbenzene mass concentration" />
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    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
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    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
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    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
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    <attribute name="standard_name" value="mole_fraction_of_124_trimethylbenzene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="qc_1_2_4_trimethylbenzene_pmol_per_mol_amean meta_1_2_4_trimethylbenzene_pmol_per_mol_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="1-2-4-trimethylbenzene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
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    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
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    <attribute name="ebas_calibration_scale" value="NPL" />
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    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
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    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube" />
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    <attribute name="actris_variable_preferred_term" value="1,2,4-trimethylbenzene amount fraction" />
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    <attribute name="actris_access_restriction" type="long" value="1" />
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    <attribute name="standard_name" value="status_flag" />
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    <attribute name="units" value="1" />
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  <variable name="meta_1_2_4_trimethylbenzene_pmol_per_mol_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
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    <attribute name="_FillValue" type="double" value="NaN" />
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    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
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    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="1-2-4-trimethylbenzene" />
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    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
    <attribute name="ebas_secondary_standard_id" value="D618327_20240422" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
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    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube -- Data converted on export from EBAS from 'pmol/mol' to 'ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.005. Detection limit converted from '1.0 pmol/mol' to '0.0 ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.005." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/1-2-4-trimethylbenzenemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="1,2,4-trimethylbenzene mass concentration" />
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    <attribute name="actris_access_restriction" type="long" value="1" />
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    <attribute name="standard_name" value="status_flag" />
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    <attribute name="units" value="1" />
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  <variable name="meta_1_2_4_trimethylbenzene_ug_per_m3_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_1_2_4_trimethylbenzene_pmol_per_mol_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_124_trimethylbenzene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="qc_1_2_4_trimethylbenzene_pmol_per_mol_ExpUnc2s meta_1_2_4_trimethylbenzene_pmol_per_mol_ExpUnc2s" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="1-2-4-trimethylbenzene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
    <attribute name="ebas_secondary_standard_id" value="D618327_20240422" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
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    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/1-2-4-trimethylbenzeneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="1,2,4-trimethylbenzene amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
  </variable>
  <variable name="qc_1_2_4_trimethylbenzene_pmol_per_mol_ExpUnc2s" shape="qc_1_2_4_trimethylbenzene_pmol_per_mol_ExpUnc2s_flags time" type="int">
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    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_1_2_4_trimethylbenzene_pmol_per_mol_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_1_2_4_trimethylbenzene_ug_per_m3_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_1-2-4-trimethylbenzene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="qc_1_2_4_trimethylbenzene_ug_per_m3_ExpUnc2s meta_1_2_4_trimethylbenzene_ug_per_m3_ExpUnc2s" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="1-2-4-trimethylbenzene" />
    <attribute name="ebas_unit" value="ug/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
    <attribute name="ebas_secondary_standard_id" value="D618327_20240422" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube -- Data converted on export from EBAS from 'pmol/mol' to 'ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.005." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/1-2-4-trimethylbenzenemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="1,2,4-trimethylbenzene mass concentration" />
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    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
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    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
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  <variable name="qc_1_2_4_trimethylbenzene_ug_per_m3_ExpUnc2s" shape="qc_1_2_4_trimethylbenzene_ug_per_m3_ExpUnc2s_flags time" type="int">
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    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_1_2_4_trimethylbenzene_ug_per_m3_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_1_3_5_trimethylbenzene_pmol_per_mol_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_135_trimethylbenzene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="qc_1_3_5_trimethylbenzene_pmol_per_mol_amean meta_1_3_5_trimethylbenzene_pmol_per_mol_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="1-3-5-trimethylbenzene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
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    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
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    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/1-3-5-trimethylbenzeneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="1,3,5-trimethylbenzene amount fraction" />
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    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
  </variable>
  <variable name="qc_1_3_5_trimethylbenzene_pmol_per_mol_amean" shape="qc_1_3_5_trimethylbenzene_pmol_per_mol_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_1_3_5_trimethylbenzene_pmol_per_mol_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_1_3_5_trimethylbenzene_ug_per_m3_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_1-3-5-trimethylbenzene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="qc_1_3_5_trimethylbenzene_ug_per_m3_amean meta_1_3_5_trimethylbenzene_ug_per_m3_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="1-3-5-trimethylbenzene" />
    <attribute name="ebas_unit" value="ug/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
    <attribute name="ebas_secondary_standard_id" value="D618327_20240422" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
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    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube -- Data converted on export from EBAS from 'pmol/mol' to 'ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.005. Detection limit converted from '1.0 pmol/mol' to '0.0 ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.005." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/1-3-5-trimethylbenzenemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="1,3,5-trimethylbenzene mass concentration" />
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    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gaschromatograph-online" />
    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
  </variable>
  <variable name="qc_1_3_5_trimethylbenzene_ug_per_m3_amean" shape="qc_1_3_5_trimethylbenzene_ug_per_m3_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_1_3_5_trimethylbenzene_ug_per_m3_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_1_3_5_trimethylbenzene_pmol_per_mol_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_135_trimethylbenzene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="qc_1_3_5_trimethylbenzene_pmol_per_mol_ExpUnc2s meta_1_3_5_trimethylbenzene_pmol_per_mol_ExpUnc2s" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="1-3-5-trimethylbenzene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
    <attribute name="ebas_secondary_standard_id" value="D618327_20240422" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/1-3-5-trimethylbenzeneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="1,3,5-trimethylbenzene amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
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  <variable name="qc_1_3_5_trimethylbenzene_pmol_per_mol_ExpUnc2s" shape="qc_1_3_5_trimethylbenzene_pmol_per_mol_ExpUnc2s_flags time" type="int">
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    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
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  <variable name="meta_1_3_5_trimethylbenzene_pmol_per_mol_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_1_3_5_trimethylbenzene_ug_per_m3_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_1-3-5-trimethylbenzene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="qc_1_3_5_trimethylbenzene_ug_per_m3_ExpUnc2s meta_1_3_5_trimethylbenzene_ug_per_m3_ExpUnc2s" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="1-3-5-trimethylbenzene" />
    <attribute name="ebas_unit" value="ug/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
    <attribute name="ebas_secondary_standard_id" value="D618327_20240422" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
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    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
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    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube -- Data converted on export from EBAS from 'pmol/mol' to 'ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.005." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/1-3-5-trimethylbenzenemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="1,3,5-trimethylbenzene mass concentration" />
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    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
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    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
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  <variable name="meta_1_3_5_trimethylbenzene_ug_per_m3_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_1_3_butadiene_ng_per_m3_amean" shape="time" type="double">
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    <attribute name="standard_name" value="mass_concentration_of_1-3-butadiene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="qc_1_3_butadiene_ng_per_m3_amean meta_1_3_butadiene_ng_per_m3_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
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    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
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    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="1-3-butadiene" />
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    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
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    <attribute name="ebas_calibration_scale" value="NPL" />
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    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
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    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
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    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 2.41. Detection limit converted from '1.0 pmol/mol' to '2.0 ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 2.41." />
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    <attribute name="actris_variable_preferred_term" value="1,3-butadiene mass concentration" />
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    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
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    <attribute name="units" value="1" />
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  <variable name="meta_1_3_butadiene_ng_per_m3_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_1_3_butadiene_pmol_per_mol_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_13_butadiene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="qc_1_3_butadiene_pmol_per_mol_amean meta_1_3_butadiene_pmol_per_mol_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="1-3-butadiene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
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    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
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    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
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    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
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    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube" />
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    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
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    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube" />
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    <attribute name="actris_variable_preferred_term" value="1-butene amount fraction" />
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    <attribute name="actris_access_restriction" type="long" value="1" />
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    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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    <attribute name="units" value="ng/m3" />
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    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
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    <attribute name="ebas_station_code" value="GB0023U" />
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    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="1-butene" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
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    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
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    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
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    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
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    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
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    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 2.50." />
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    <attribute name="actris_variable_preferred_term" value="1-butene mass concentration" />
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    <attribute name="actris_access_restriction" type="long" value="1" />
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  <variable name="meta_1_butene_ng_per_m3_ExpUnc2s" shape="metadata_time" type="String">
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    <attribute name="standard_name" value="mole_fraction_of_1_butene_in_air" />
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    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
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    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
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    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
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    <attribute name="ebas_station_setting" value="Urban and center city" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="1-butene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
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    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube" />
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    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
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    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="1-pentene" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
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    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.13. Detection limit converted from '1.0 pmol/mol' to '3.0 ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.13." />
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  <variable name="meta_1_pentene_ng_per_m3_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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  <variable name="v_1_pentene_pmol_per_mol_amean" shape="time" type="double">
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    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
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    <attribute name="ebas_platform_code" value="GB0023S" />
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    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
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    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
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    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube" />
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    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="" />
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    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
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    <attribute name="ebas_station_code" value="GB0023U" />
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    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
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    <attribute name="ebas_regime" value="IMG" />
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    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
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    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
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    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.13." />
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    <attribute name="actris_access_restriction" type="long" value="1" />
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    <attribute name="standard_name" value="mole_fraction_of_1_pentene_in_air" />
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    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
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    <attribute name="ebas_regime" value="IMG" />
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    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube" />
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    <attribute name="ebas_statistics" value="arithmetic mean" />
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    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="2-2-4-trimethylpentane" />
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    <attribute name="ebas_matrix" value="air" />
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    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 5.10. Detection limit converted from '1.0 pmol/mol' to '5.0 ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 5.10." />
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    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gaschromatograph-online" />
    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
  </variable>
  <variable name="qc_2_2_4_trimethylpentane_ng_per_m3_amean" shape="qc_2_2_4_trimethylpentane_ng_per_m3_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_2_2_4_trimethylpentane_ng_per_m3_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_2_2_4_trimethylpentane_pmol_per_mol_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_224_trimethylpentane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="qc_2_2_4_trimethylpentane_pmol_per_mol_amean meta_2_2_4_trimethylpentane_pmol_per_mol_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="2-2-4-trimethylpentane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
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    <attribute name="ebas_secondary_standard_id" value="D618327_20240422" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
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    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/2-2-4-trimethylpentaneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="2,2,4-trimethylpentane amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
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    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
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  <variable name="qc_2_2_4_trimethylpentane_pmol_per_mol_amean" shape="qc_2_2_4_trimethylpentane_pmol_per_mol_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
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  <variable name="meta_2_2_4_trimethylpentane_pmol_per_mol_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_2_2_4_trimethylpentane_ng_per_m3_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_2-2-4-trimethylpentane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="qc_2_2_4_trimethylpentane_ng_per_m3_ExpUnc2s meta_2_2_4_trimethylpentane_ng_per_m3_ExpUnc2s" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="2-2-4-trimethylpentane" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
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    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
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    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
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    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
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    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 5.10." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/2-2-4-trimethylpentanemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="2,2,4-trimethylpentane mass concentration" />
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    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
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    <attribute name="missing_value" type="int" value="0" />
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  <variable name="meta_2_2_4_trimethylpentane_ng_per_m3_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_2_2_4_trimethylpentane_pmol_per_mol_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_224_trimethylpentane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="qc_2_2_4_trimethylpentane_pmol_per_mol_ExpUnc2s meta_2_2_4_trimethylpentane_pmol_per_mol_ExpUnc2s" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="2-2-4-trimethylpentane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
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    <attribute name="ebas_calibration_scale" value="NPL" />
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    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
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    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube" />
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    <attribute name="actris_variable_preferred_term" value="2,2,4-trimethylpentane amount fraction" />
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    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
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    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT0S" />
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  <variable name="meta_2_2_4_trimethylpentane_pmol_per_mol_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_2_methylbutane_ng_per_m3_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_2-methylbutane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="qc_2_methylbutane_ng_per_m3_amean meta_2_methylbutane_ng_per_m3_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="2-methylbutane" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
    <attribute name="ebas_secondary_standard_id" value="D618327_20240422" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
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    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
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    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.84. Detection limit converted from '1.0 pmol/mol' to '4.0 ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.84." />
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    <attribute name="units" value="pmol/mol" />
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    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
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    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
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    <attribute name="ebas_component" value="2-methylpentane" />
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    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
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    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.84." />
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    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
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    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/2-methyl-propaneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="2-methyl-propane amount fraction" />
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    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
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    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
  </variable>
  <variable name="qc_2_methylpropane_pmol_per_mol_ExpUnc2s" shape="qc_2_methylpropane_pmol_per_mol_ExpUnc2s_flags time" type="int">
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_2_methylpropane_pmol_per_mol_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_2_methylpropene_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_2_methylpropene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="qc_2_methylpropene_amean meta_2_methylpropene_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="2-methylpropene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
    <attribute name="ebas_secondary_standard_id" value="D618327_20240422" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
    <attribute name="ebas_detection_limit" value="1.0 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Includes reproducibility (precision) and systematic errors (accuracy). Ref:http://www.atmos-meas-tech.net/8/2715/2015/" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/2-methyl-propeneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="2-methyl-propene amount fraction" />
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    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
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    <attribute name="actris_framework_preferred_term" value="" />
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    <attribute name="actris_access_restriction" type="long" value="1" />
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  <variable name="qc_2_methylpropene_amean" shape="qc_2_methylpropene_amean_flags time" type="int">
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    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
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  <variable name="meta_2_methylpropene_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_2_methylpropene_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_2_methylpropene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="qc_2_methylpropene_ExpUnc2s meta_2_methylpropene_ExpUnc2s" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="2-methylpropene" />
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    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
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    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
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    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Includes reproducibility (precision) and systematic errors (accuracy). Ref:http://www.atmos-meas-tech.net/8/2715/2015/" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
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    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/2-methyl-propeneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="2-methyl-propene amount fraction" />
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  <variable name="qc_2_methylpropene_ExpUnc2s" shape="qc_2_methylpropene_ExpUnc2s_flags time" type="int">
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    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_2_methylpropene_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_3_methylpentane_ng_per_m3" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_3-methylpentane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="qc_3_methylpentane_ng_per_m3 meta_3_methylpentane_ng_per_m3" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
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    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="3-methylpentane" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
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    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
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    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.84. Detection limit converted from '1.0 pmol/mol' to '4.0 ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.84." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/3-methylpentanemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="3-methylpentane mass concentration" />
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    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
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    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
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  <variable name="qc_3_methylpentane_ng_per_m3" shape="qc_3_methylpentane_ng_per_m3_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
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    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_3_methylpentane_ng_per_m3" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_3_methylpentane_pmol_per_mol" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_3_methylpentane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="qc_3_methylpentane_pmol_per_mol meta_3_methylpentane_pmol_per_mol" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
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    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="3-methylpentane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
    <attribute name="ebas_secondary_standard_id" value="D618327_20240422" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
    <attribute name="ebas_detection_limit" value="1.0 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Includes reproducibility (precision) and systematic errors (accuracy). Ref:http://www.atmos-meas-tech.net/8/2715/2015/" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/3-methylpentaneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="3-methylpentane amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gaschromatograph-online" />
    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
  </variable>
  <variable name="qc_3_methylpentane_pmol_per_mol" shape="qc_3_methylpentane_pmol_per_mol_flags time" type="int">
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_3_methylpentane_pmol_per_mol" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_benzene_ng_per_m3_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_benzene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="qc_benzene_ng_per_m3_amean meta_benzene_ng_per_m3_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="benzene" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
    <attribute name="ebas_secondary_standard_id" value="D618327_20240422" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="3.0 ng/m3" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Includes reproducibility (precision) and systematic errors (accuracy). Ref:http://www.atmos-meas-tech.net/8/2715/2015/" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.49. Detection limit converted from '1.0 pmol/mol' to '3.0 ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.49." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/benzenemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="benzene mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gaschromatograph-online" />
    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
  </variable>
  <variable name="qc_benzene_ng_per_m3_amean" shape="qc_benzene_ng_per_m3_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_benzene_ng_per_m3_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_benzene_pmol_per_mol_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_benzene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="qc_benzene_pmol_per_mol_amean meta_benzene_pmol_per_mol_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="benzene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
    <attribute name="ebas_secondary_standard_id" value="D618327_20240422" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
    <attribute name="ebas_detection_limit" value="1.0 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/benzeneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="benzene amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
  </variable>
  <variable name="qc_benzene_pmol_per_mol_amean" shape="qc_benzene_pmol_per_mol_amean_flags time" type="int">
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_benzene_pmol_per_mol_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_benzene_ng_per_m3_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_benzene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="qc_benzene_ng_per_m3_ExpUnc2s meta_benzene_ng_per_m3_ExpUnc2s" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="benzene" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
    <attribute name="ebas_secondary_standard_id" value="D618327_20240422" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.49." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/benzenemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="benzene mass concentration" />
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    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
  </variable>
  <variable name="qc_benzene_ng_per_m3_ExpUnc2s" shape="qc_benzene_ng_per_m3_ExpUnc2s_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_benzene_ng_per_m3_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_benzene_pmol_per_mol_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_benzene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="qc_benzene_pmol_per_mol_ExpUnc2s meta_benzene_pmol_per_mol_ExpUnc2s" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
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    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="benzene" />
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    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
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    <attribute name="ebas_calibration_scale" value="NPL" />
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    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
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    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/benzeneamountfraction" />
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    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
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    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
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    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
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    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
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    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="cis-2-butene" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
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    <attribute name="ebas_calibration_scale" value="NPL" />
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    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
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    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
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    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
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    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 2.50. Detection limit converted from '1.0 pmol/mol' to '3.0 ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 2.50." />
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    <attribute name="actris_variable_preferred_term" value="(Z)-2-butene mass concentration" />
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    <attribute name="actris_access_restriction" type="long" value="1" />
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  <variable name="meta_cis_2_butene_ng_per_m3_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
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    <attribute name="standard_name" value="mole_fraction_of_cis_2_butene_in_air" />
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    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
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    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
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    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="cis-2-butene" />
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    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
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    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
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    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube" />
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  <variable name="qc_cis_2_butene_pmol_per_mol_amean" shape="qc_cis_2_butene_pmol_per_mol_amean_flags time" type="int">
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  <variable name="meta_cis_2_butene_pmol_per_mol_amean" shape="metadata_time" type="String">
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  </variable>
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    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
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    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
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    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="cis-2-butene" />
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    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
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    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
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    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
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    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 2.50." />
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    <attribute name="actris_variable_preferred_term" value="(Z)-2-butene mass concentration" />
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    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gaschromatograph-online" />
    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
  </variable>
  <variable name="qc_cis_2_butene_ng_per_m3_ExpUnc2s" shape="qc_cis_2_butene_ng_per_m3_ExpUnc2s_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_cis_2_butene_ng_per_m3_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_cis_2_butene_pmol_per_mol_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_cis_2_butene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="qc_cis_2_butene_pmol_per_mol_ExpUnc2s meta_cis_2_butene_pmol_per_mol_ExpUnc2s" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="cis-2-butene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
    <attribute name="ebas_secondary_standard_id" value="D618327_20240422" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
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    <attribute name="ebas_measurement_uncertainty_expl" value="Includes reproducibility (precision) and systematic errors (accuracy). Ref:http://www.atmos-meas-tech.net/8/2715/2015/" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/-Z-2-buteneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="(Z)-2-butene amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
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  <variable name="qc_cis_2_butene_pmol_per_mol_ExpUnc2s" shape="qc_cis_2_butene_pmol_per_mol_ExpUnc2s_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_cis_2_butene_pmol_per_mol_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_cyclo_pentane_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_cyclo_pentane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="qc_cyclo_pentane_amean meta_cyclo_pentane_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="cyclo-pentane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
    <attribute name="ebas_secondary_standard_id" value="D618327_20240422" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
    <attribute name="ebas_detection_limit" value="1.0 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/cyclopentaneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="cyclopentane amount fraction" />
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    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
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    <attribute name="actris_access_restriction" type="long" value="1" />
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  <variable name="qc_cyclo_pentane_amean" shape="qc_cyclo_pentane_amean_flags time" type="int">
    <attribute name="units" value="1" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
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  <variable name="meta_cyclo_pentane_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_cyclo_pentane_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_cyclo_pentane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="qc_cyclo_pentane_ExpUnc2s meta_cyclo_pentane_ExpUnc2s" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
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    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
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    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="cyclo-pentane" />
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    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
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    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
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    <attribute name="ebas_inlet_type" value="None--open-face filter" />
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    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
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    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/cyclopentaneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="cyclopentane amount fraction" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_temporal_resolution" value="PT0S" />
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  <variable name="qc_cyclo_pentane_ExpUnc2s" shape="qc_cyclo_pentane_ExpUnc2s_flags time" type="int">
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    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
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  <variable name="meta_cyclo_pentane_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_ethanal_nmol_per_mol_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_ethanal_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="nmol/mol" />
    <attribute name="ancillary_variables" value="qc_ethanal_nmol_per_mol_amean meta_ethanal_nmol_per_mol_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ethanal" />
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    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
    <attribute name="ebas_secondary_standard_id" value="D618327_20240422" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
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    <attribute name="ebas_measurement_uncertainty_expl" value="Includes reproducibility (precision) and systematic errors (accuracy). Ref:http://www.atmos-meas-tech.net/8/2715/2015/" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
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    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube -- Data converted on import into EBAS from 'pmol/mol' to 'ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.001965. Detection limit converted from '20.0 pmol/mol' to '0.0393 ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.001965. -- Data converted on export from EBAS from 'ug/m3' at 273.15 K, 1013.25 hPa to 'nmol/mol', conversion factor 0.50879. Detection limit converted from '0.0393 ug/m3' at 273.15 K, 1013.25 hPa to '0.02 nmol/mol', conversion factor 0.50879." />
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    <attribute name="actris_access_restriction" type="long" value="1" />
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    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
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    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
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    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube -- Data converted on import into EBAS from 'pmol/mol' to 'ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.001965. Detection limit converted from '20.0 pmol/mol' to '0.0393 ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.001965." />
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    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
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    <attribute name="ebas_regime" value="IMG" />
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    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube -- Data converted on import into EBAS from 'pmol/mol' to 'ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.001965." />
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    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
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    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ethane" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
    <attribute name="ebas_secondary_standard_id" value="D618327_20240422" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="12.0 ng/m3" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Includes reproducibility (precision) and systematic errors (accuracy). Ref:http://www.atmos-meas-tech.net/8/2715/2015/" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 1.34. Detection limit converted from '9.0 pmol/mol' to '12.0 ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 1.34." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/ethanemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="ethane mass concentration" />
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    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
  </variable>
  <variable name="qc_ethane_ng_per_m3_amean" shape="qc_ethane_ng_per_m3_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_ethane_ng_per_m3_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_ethane_pmol_per_mol_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_ethane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="qc_ethane_pmol_per_mol_amean meta_ethane_pmol_per_mol_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ethane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
    <attribute name="ebas_secondary_standard_id" value="D618327_20240422" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
    <attribute name="ebas_detection_limit" value="9.0 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/ethaneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="ethane amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
  </variable>
  <variable name="qc_ethane_pmol_per_mol_amean" shape="qc_ethane_pmol_per_mol_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_ethane_pmol_per_mol_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_ethane_ng_per_m3_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_ethane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="qc_ethane_ng_per_m3_ExpUnc2s meta_ethane_ng_per_m3_ExpUnc2s" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ethane" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
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    <attribute name="ebas_secondary_standard_id" value="D618327_20240422" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 1.34." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/ethanemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="ethane mass concentration" />
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    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
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    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
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  <variable name="qc_ethane_ng_per_m3_ExpUnc2s" shape="qc_ethane_ng_per_m3_ExpUnc2s_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_ethane_ng_per_m3_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_ethane_pmol_per_mol_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_ethane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
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    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ethane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
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    <attribute name="ebas_calibration_scale" value="NPL" />
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    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/ethaneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="ethane amount fraction" />
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    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
  </variable>
  <variable name="qc_ethane_pmol_per_mol_ExpUnc2s" shape="qc_ethane_pmol_per_mol_ExpUnc2s_flags time" type="int">
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_ethane_pmol_per_mol_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_ethanol_nmol_per_mol_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_ethanol_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="nmol/mol" />
    <attribute name="ancillary_variables" value="qc_ethanol_nmol_per_mol_amean meta_ethanol_nmol_per_mol_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ethanol" />
    <attribute name="ebas_unit" value="nmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
    <attribute name="ebas_secondary_standard_id" value="D618327_20240422" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
    <attribute name="ebas_detection_limit" value="0.015 nmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Includes reproducibility (precision) and systematic errors (accuracy). Ref:http://www.atmos-meas-tech.net/8/2715/2015/" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube -- Data converted on import into EBAS from 'pmol/mol' to 'ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.002055. Detection limit converted from '15.0 pmol/mol' to '0.0308 ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.002055. -- Data converted on export from EBAS from 'ug/m3' at 273.15 K, 1013.25 hPa to 'nmol/mol', conversion factor 0.486526. Detection limit converted from '0.0308 ug/m3' at 273.15 K, 1013.25 hPa to '0.015 nmol/mol', conversion factor 0.486526." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/ethanolamountfraction" />
    <attribute name="actris_variable_preferred_term" value="ethanol amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gaschromatograph-online" />
    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
  </variable>
  <variable name="qc_ethanol_nmol_per_mol_amean" shape="qc_ethanol_nmol_per_mol_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_ethanol_nmol_per_mol_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_ethanol_ug_per_m3_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_ethanol_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="qc_ethanol_ug_per_m3_amean meta_ethanol_ug_per_m3_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ethanol" />
    <attribute name="ebas_unit" value="ug/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
    <attribute name="ebas_secondary_standard_id" value="D618327_20240422" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="0.0308 ug/m3" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Includes reproducibility (precision) and systematic errors (accuracy). Ref:http://www.atmos-meas-tech.net/8/2715/2015/" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube -- Data converted on import into EBAS from 'pmol/mol' to 'ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.002055. Detection limit converted from '15.0 pmol/mol' to '0.0308 ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.002055." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/ethanolmassconcentration" />
    <attribute name="actris_variable_preferred_term" value="ethanol mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gaschromatograph-online" />
    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
  </variable>
  <variable name="qc_ethanol_ug_per_m3_amean" shape="qc_ethanol_ug_per_m3_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_ethanol_ug_per_m3_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_ethanol_nmol_per_mol_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_ethanol_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="nmol/mol" />
    <attribute name="ancillary_variables" value="qc_ethanol_nmol_per_mol_ExpUnc2s meta_ethanol_nmol_per_mol_ExpUnc2s" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ethanol" />
    <attribute name="ebas_unit" value="nmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
    <attribute name="ebas_secondary_standard_id" value="D618327_20240422" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube -- Data converted on import into EBAS from 'pmol/mol' to 'ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.002055. -- Data converted on export from EBAS from 'ug/m3' at 273.15 K, 1013.25 hPa to 'nmol/mol', conversion factor 0.486526." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/ethanolamountfraction" />
    <attribute name="actris_variable_preferred_term" value="ethanol amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gaschromatograph-online" />
    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
  </variable>
  <variable name="qc_ethanol_nmol_per_mol_ExpUnc2s" shape="qc_ethanol_nmol_per_mol_ExpUnc2s_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_ethanol_nmol_per_mol_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_ethanol_ug_per_m3_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_ethanol_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="qc_ethanol_ug_per_m3_ExpUnc2s meta_ethanol_ug_per_m3_ExpUnc2s" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ethanol" />
    <attribute name="ebas_unit" value="ug/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
    <attribute name="ebas_secondary_standard_id" value="D618327_20240422" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Includes reproducibility (precision) and systematic errors (accuracy). Ref:http://www.atmos-meas-tech.net/8/2715/2015/" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube -- Data converted on import into EBAS from 'pmol/mol' to 'ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.002055." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/ethanolmassconcentration" />
    <attribute name="actris_variable_preferred_term" value="ethanol mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gaschromatograph-online" />
    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
  </variable>
  <variable name="qc_ethanol_ug_per_m3_ExpUnc2s" shape="qc_ethanol_ug_per_m3_ExpUnc2s_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_ethanol_ug_per_m3_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_ethene_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_ethene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="qc_ethene_amean meta_ethene_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ethene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
    <attribute name="ebas_secondary_standard_id" value="D618327_20240422" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
    <attribute name="ebas_detection_limit" value="7.0 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Includes reproducibility (precision) and systematic errors (accuracy). Ref:http://www.atmos-meas-tech.net/8/2715/2015/" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/etheneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="ethene amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gaschromatograph-online" />
    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
  </variable>
  <variable name="qc_ethene_amean" shape="qc_ethene_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_ethene_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_ethene_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_ethene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="qc_ethene_ExpUnc2s meta_ethene_ExpUnc2s" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ethene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
    <attribute name="ebas_secondary_standard_id" value="D618327_20240422" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Includes reproducibility (precision) and systematic errors (accuracy). Ref:http://www.atmos-meas-tech.net/8/2715/2015/" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/etheneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="ethene amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gaschromatograph-online" />
    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
  </variable>
  <variable name="qc_ethene_ExpUnc2s" shape="qc_ethene_ExpUnc2s_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_ethene_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_ethylbenzene_ng_per_m3_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_ethylbenzene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="qc_ethylbenzene_ng_per_m3_amean meta_ethylbenzene_ng_per_m3_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ethylbenzene" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
    <attribute name="ebas_secondary_standard_id" value="D618327_20240422" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="5.0 ng/m3" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Includes reproducibility (precision) and systematic errors (accuracy). Ref:http://www.atmos-meas-tech.net/8/2715/2015/" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 4.74. Detection limit converted from '1.0 pmol/mol' to '5.0 ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 4.74." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/ethylbenzenemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="ethylbenzene mass concentration" />
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    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gaschromatograph-online" />
    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
  </variable>
  <variable name="qc_ethylbenzene_ng_per_m3_amean" shape="qc_ethylbenzene_ng_per_m3_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_ethylbenzene_ng_per_m3_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_ethylbenzene_pmol_per_mol_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_ethylbenzene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="qc_ethylbenzene_pmol_per_mol_amean meta_ethylbenzene_pmol_per_mol_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ethylbenzene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
    <attribute name="ebas_secondary_standard_id" value="D618327_20240422" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
    <attribute name="ebas_detection_limit" value="1.0 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Includes reproducibility (precision) and systematic errors (accuracy). Ref:http://www.atmos-meas-tech.net/8/2715/2015/" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/ethylbenzeneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="ethylbenzene amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gaschromatograph-online" />
    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
  </variable>
  <variable name="qc_ethylbenzene_pmol_per_mol_amean" shape="qc_ethylbenzene_pmol_per_mol_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_ethylbenzene_pmol_per_mol_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_ethylbenzene_ng_per_m3_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_ethylbenzene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="qc_ethylbenzene_ng_per_m3_ExpUnc2s meta_ethylbenzene_ng_per_m3_ExpUnc2s" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ethylbenzene" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
    <attribute name="ebas_secondary_standard_id" value="D618327_20240422" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Includes reproducibility (precision) and systematic errors (accuracy). Ref:http://www.atmos-meas-tech.net/8/2715/2015/" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 4.74." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/ethylbenzenemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="ethylbenzene mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gaschromatograph-online" />
    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
  </variable>
  <variable name="qc_ethylbenzene_ng_per_m3_ExpUnc2s" shape="qc_ethylbenzene_ng_per_m3_ExpUnc2s_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_ethylbenzene_ng_per_m3_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_ethylbenzene_pmol_per_mol_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_ethylbenzene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="qc_ethylbenzene_pmol_per_mol_ExpUnc2s meta_ethylbenzene_pmol_per_mol_ExpUnc2s" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ethylbenzene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
    <attribute name="ebas_secondary_standard_id" value="D618327_20240422" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Includes reproducibility (precision) and systematic errors (accuracy). Ref:http://www.atmos-meas-tech.net/8/2715/2015/" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/ethylbenzeneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="ethylbenzene amount fraction" />
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    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
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    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
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  <variable name="qc_ethylbenzene_pmol_per_mol_ExpUnc2s" shape="qc_ethylbenzene_pmol_per_mol_ExpUnc2s_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_ethylbenzene_pmol_per_mol_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_ethyne_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_ethyne_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="qc_ethyne_amean meta_ethyne_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ethyne" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
    <attribute name="ebas_secondary_standard_id" value="D618327_20240422" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
    <attribute name="ebas_detection_limit" value="7.0 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Includes reproducibility (precision) and systematic errors (accuracy). Ref:http://www.atmos-meas-tech.net/8/2715/2015/" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/ethyneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="ethyne amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gaschromatograph-online" />
    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
  </variable>
  <variable name="qc_ethyne_amean" shape="qc_ethyne_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_ethyne_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_ethyne_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_ethyne_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="qc_ethyne_ExpUnc2s meta_ethyne_ExpUnc2s" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ethyne" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
    <attribute name="ebas_secondary_standard_id" value="D618327_20240422" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Includes reproducibility (precision) and systematic errors (accuracy). Ref:http://www.atmos-meas-tech.net/8/2715/2015/" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/ethyneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="ethyne amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
  </variable>
  <variable name="qc_ethyne_ExpUnc2s" shape="qc_ethyne_ExpUnc2s_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_ethyne_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_m_xylene_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_fraction_of_m_xylene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="qc_m_xylene_amean meta_m_xylene_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="m-xylene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
    <attribute name="ebas_secondary_standard_id" value="D618327_20240422" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
    <attribute name="ebas_detection_limit" value="1.0 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Includes reproducibility (precision) and systematic errors (accuracy). Ref:http://www.atmos-meas-tech.net/8/2715/2015/" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/m-xyleneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="m-xylene amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_access_restriction" type="long" value="1" />
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  <variable name="qc_m_xylene_amean" shape="qc_m_xylene_amean_flags time" type="int">
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    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_m_xylene_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_m_xylene_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_fraction_of_m_xylene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="qc_m_xylene_ExpUnc2s meta_m_xylene_ExpUnc2s" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="m-xylene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
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    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/m-xyleneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="m-xylene amount fraction" />
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    <attribute name="actris_access_restriction" type="long" value="1" />
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  <variable name="qc_m_xylene_ExpUnc2s" shape="qc_m_xylene_ExpUnc2s_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
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    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_m_xylene_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_n_butane_ng_per_m3_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_n-butane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="qc_n_butane_ng_per_m3_amean meta_n_butane_ng_per_m3_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
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    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="n-butane" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
    <attribute name="ebas_secondary_standard_id" value="D618327_20240422" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
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    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 2.59. Detection limit converted from '1.0 pmol/mol' to '3.0 ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 2.59." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/n-butanemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="n-butane mass concentration" />
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    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
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    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
  </variable>
  <variable name="qc_n_butane_ng_per_m3_amean" shape="qc_n_butane_ng_per_m3_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_n_butane_ng_per_m3_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_n_butane_pmol_per_mol_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_butane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
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    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
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    <attribute name="ebas_component" value="n-butane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
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    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
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    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
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    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
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    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
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    <attribute name="ebas_station_setting" value="Urban and center city" />
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    <attribute name="ebas_regime" value="IMG" />
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    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
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    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
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    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 2.59." />
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    <attribute name="standard_name" value="mole_fraction_of_butane_in_air" />
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    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="n-butane" />
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    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
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    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
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    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
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    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="n-hexane" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
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    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.84. Detection limit converted from '1.0 pmol/mol' to '4.0 ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.84." />
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    <attribute name="actris_variable_preferred_term" value="n-hexane mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
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    <attribute name="actris_access_restriction" type="long" value="1" />
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    <attribute name="units" value="1" />
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  <variable name="meta_n_hexane_ng_per_m3_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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    <attribute name="standard_name" value="mole_fraction_of_hexane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="qc_n_hexane_pmol_per_mol_amean meta_n_hexane_pmol_per_mol_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
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    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="n-hexane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
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    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
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    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
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    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/n-hexaneamountfraction" />
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    <attribute name="actris_access_restriction" type="long" value="1" />
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    <attribute name="standard_name" value="status_flag" />
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    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
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    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
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    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
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    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.84." />
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    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="n-hexane" />
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    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube" />
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    <attribute name="missing_value" type="double" value="NaN" />
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    <attribute name="cell_methods" value="time: mean" />
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    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
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    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="n-nonane" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
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    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
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    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 5.72. Detection limit converted from '1.0 pmol/mol' to '6.0 ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 5.72." />
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    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
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    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
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    <attribute name="ebas_sample_duration" value="25mn" />
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    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="n-nonane" />
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    <attribute name="ebas_matrix" value="air" />
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    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
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    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
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    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
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    <attribute name="ebas_station_setting" value="Urban and center city" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="n-nonane" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="n-nonane" />
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    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_n-pentane_in_air" />
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    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="n-pentane" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
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    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
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    <attribute name="ebas_inlet_type" value="None--open-face filter" />
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    <attribute name="ebas_detection_limit" value="3.0 ng/m3" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
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    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.22. Detection limit converted from '1.0 pmol/mol' to '3.0 ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.22." />
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    <attribute name="actris_variable_preferred_term" value="n-pentane mass concentration" />
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    <attribute name="actris_access_restriction" type="long" value="1" />
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    <attribute name="standard_name" value="status_flag" />
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    <attribute name="units" value="1" />
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  <variable name="meta_n_pentane_ng_per_m3_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_pentane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="qc_n_pentane_pmol_per_mol_amean meta_n_pentane_pmol_per_mol_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
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    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
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    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="n-pentane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
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    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
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    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
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    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/n-pentaneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="n-pentane amount fraction" />
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    <attribute name="actris_access_restriction" type="long" value="1" />
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    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
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  <variable name="meta_n_pentane_pmol_per_mol_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
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    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
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    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
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    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
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    <attribute name="ebas_station_code" value="GB0023U" />
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    <attribute name="ebas_station_setting" value="Urban and center city" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="n-pentane" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
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    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
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    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
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    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.22." />
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  <variable name="qc_n_pentane_ng_per_m3_ExpUnc2s" shape="qc_n_pentane_ng_per_m3_ExpUnc2s_flags time" type="int">
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  <variable name="meta_n_pentane_ng_per_m3_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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  <variable name="v_n_pentane_pmol_per_mol_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_pentane_in_air" />
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    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
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    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="n-pentane" />
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    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/n-pentaneamountfraction" />
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  <variable name="qc_n_pentane_pmol_per_mol_ExpUnc2s" shape="qc_n_pentane_pmol_per_mol_ExpUnc2s_flags time" type="int">
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    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_o_xylene_ng_per_m3_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_o-xylene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="qc_o_xylene_ng_per_m3_amean meta_o_xylene_ng_per_m3_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="o-xylene" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
    <attribute name="ebas_secondary_standard_id" value="D618327_20240422" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
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    <attribute name="ebas_detection_limit" value="5.0 ng/m3" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 4.74. Detection limit converted from '1.0 pmol/mol' to '5.0 ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 4.74." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/o-xylenemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="o-xylene mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
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    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
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  <variable name="qc_o_xylene_ng_per_m3_amean" shape="qc_o_xylene_ng_per_m3_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_o_xylene_ng_per_m3_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_o_xylene_pmol_per_mol_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_o_xylene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="qc_o_xylene_pmol_per_mol_amean meta_o_xylene_pmol_per_mol_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="o-xylene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
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    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
    <attribute name="ebas_secondary_standard_id" value="D618327_20240422" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
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    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/o-xyleneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="o-xylene amount fraction" />
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  <variable name="meta_o_xylene_pmol_per_mol_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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    <attribute name="standard_name" value="mole_fraction_of_o-xylene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
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    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
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    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="o-xylene" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
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    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 4.74." />
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    <attribute name="actris_variable_preferred_term" value="o-xylene mass concentration" />
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    <attribute name="actris_access_restriction" type="long" value="1" />
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  <variable name="qc_o_xylene_ng_per_m3_ExpUnc2s" shape="qc_o_xylene_ng_per_m3_ExpUnc2s_flags time" type="int">
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  <variable name="meta_o_xylene_ng_per_m3_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_o_xylene_pmol_per_mol_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_o_xylene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
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    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
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    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
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    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="o-xylene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
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    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
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    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
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    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/o-xyleneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="o-xylene amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gaschromatograph-online" />
    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
  </variable>
  <variable name="qc_o_xylene_pmol_per_mol_ExpUnc2s" shape="qc_o_xylene_pmol_per_mol_ExpUnc2s_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_o_xylene_pmol_per_mol_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_p_xylene_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="qc_p_xylene_amean meta_p_xylene_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="p-xylene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
    <attribute name="ebas_secondary_standard_id" value="D618327_20240422" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
    <attribute name="ebas_detection_limit" value="1.0 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Includes reproducibility (precision) and systematic errors (accuracy). Ref:http://www.atmos-meas-tech.net/8/2715/2015/" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/p-xyleneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="p-xylene amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gaschromatograph-online" />
    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
  </variable>
  <variable name="qc_p_xylene_amean" shape="qc_p_xylene_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_p_xylene_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_p_xylene_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="qc_p_xylene_ExpUnc2s meta_p_xylene_ExpUnc2s" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="p-xylene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
    <attribute name="ebas_secondary_standard_id" value="D618327_20240422" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Includes reproducibility (precision) and systematic errors (accuracy). Ref:http://www.atmos-meas-tech.net/8/2715/2015/" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/p-xyleneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="p-xylene amount fraction" />
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    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
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    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
  </variable>
  <variable name="qc_p_xylene_ExpUnc2s" shape="qc_p_xylene_ExpUnc2s_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_p_xylene_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_propane_ng_per_m3_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_propane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="qc_propane_ng_per_m3_amean meta_propane_ng_per_m3_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="propane" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
    <attribute name="ebas_secondary_standard_id" value="D618327_20240422" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="6.0 ng/m3" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Includes reproducibility (precision) and systematic errors (accuracy). Ref:http://www.atmos-meas-tech.net/8/2715/2015/" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 1.97. Detection limit converted from '3.0 pmol/mol' to '6.0 ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 1.97." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/propanemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="propane mass concentration" />
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    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gaschromatograph-online" />
    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
  </variable>
  <variable name="qc_propane_ng_per_m3_amean" shape="qc_propane_ng_per_m3_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_propane_ng_per_m3_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_propane_pmol_per_mol_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_propane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="qc_propane_pmol_per_mol_amean meta_propane_pmol_per_mol_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="propane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
    <attribute name="ebas_secondary_standard_id" value="D618327_20240422" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
    <attribute name="ebas_detection_limit" value="3.0 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Includes reproducibility (precision) and systematic errors (accuracy). Ref:http://www.atmos-meas-tech.net/8/2715/2015/" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/propaneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="propane amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gaschromatograph-online" />
    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
  </variable>
  <variable name="qc_propane_pmol_per_mol_amean" shape="qc_propane_pmol_per_mol_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_propane_pmol_per_mol_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_propane_ng_per_m3_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_propane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="qc_propane_ng_per_m3_ExpUnc2s meta_propane_ng_per_m3_ExpUnc2s" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="propane" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
    <attribute name="ebas_secondary_standard_id" value="D618327_20240422" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Includes reproducibility (precision) and systematic errors (accuracy). Ref:http://www.atmos-meas-tech.net/8/2715/2015/" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 1.97." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/propanemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="propane mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gaschromatograph-online" />
    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
  </variable>
  <variable name="qc_propane_ng_per_m3_ExpUnc2s" shape="qc_propane_ng_per_m3_ExpUnc2s_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_propane_ng_per_m3_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_propane_pmol_per_mol_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_propane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="qc_propane_pmol_per_mol_ExpUnc2s meta_propane_pmol_per_mol_ExpUnc2s" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="propane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
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    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/propaneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="propane amount fraction" />
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    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
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    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
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  <variable name="qc_propane_pmol_per_mol_ExpUnc2s" shape="qc_propane_pmol_per_mol_ExpUnc2s_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_propane_pmol_per_mol_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_propanone_nmol_per_mol_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_propanone_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="nmol/mol" />
    <attribute name="ancillary_variables" value="qc_propanone_nmol_per_mol_amean meta_propanone_nmol_per_mol_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="propanone" />
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    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
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    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
    <attribute name="ebas_detection_limit" value="0.01 nmol/mol" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube -- Data converted on import into EBAS from 'pmol/mol' to 'ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.002591. Detection limit converted from '10.0 pmol/mol' to '0.0259 ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.002591. -- Data converted on export from EBAS from 'ug/m3' at 273.15 K, 1013.25 hPa to 'nmol/mol', conversion factor 0.385913. Detection limit converted from '0.0259 ug/m3' at 273.15 K, 1013.25 hPa to '0.01 nmol/mol', conversion factor 0.385913." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/acetoneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="acetone amount fraction" />
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    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
  </variable>
  <variable name="qc_propanone_nmol_per_mol_amean" shape="qc_propanone_nmol_per_mol_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_propanone_nmol_per_mol_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_propanone_ug_per_m3_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_propanone_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="qc_propanone_ug_per_m3_amean meta_propanone_ug_per_m3_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="propanone" />
    <attribute name="ebas_unit" value="ug/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
    <attribute name="ebas_secondary_standard_id" value="D618327_20240422" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="0.0259 ug/m3" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Includes reproducibility (precision) and systematic errors (accuracy). Ref:http://www.atmos-meas-tech.net/8/2715/2015/" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube -- Data converted on import into EBAS from 'pmol/mol' to 'ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.002591. Detection limit converted from '10.0 pmol/mol' to '0.0259 ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.002591." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/acetonemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="acetone mass concentration" />
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    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
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  <variable name="qc_propanone_ug_per_m3_amean" shape="qc_propanone_ug_per_m3_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
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  <variable name="meta_propanone_ug_per_m3_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_propanone_nmol_per_mol_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_propanone_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="nmol/mol" />
    <attribute name="ancillary_variables" value="qc_propanone_nmol_per_mol_ExpUnc2s meta_propanone_nmol_per_mol_ExpUnc2s" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="propanone" />
    <attribute name="ebas_unit" value="nmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
    <attribute name="ebas_secondary_standard_id" value="D618327_20240422" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube -- Data converted on import into EBAS from 'pmol/mol' to 'ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.002591. -- Data converted on export from EBAS from 'ug/m3' at 273.15 K, 1013.25 hPa to 'nmol/mol', conversion factor 0.385913." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/acetoneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="acetone amount fraction" />
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    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
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  <variable name="qc_propanone_nmol_per_mol_ExpUnc2s" shape="qc_propanone_nmol_per_mol_ExpUnc2s_flags time" type="int">
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    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_propanone_nmol_per_mol_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_propanone_ug_per_m3_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_propanone_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="qc_propanone_ug_per_m3_ExpUnc2s meta_propanone_ug_per_m3_ExpUnc2s" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="propanone" />
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    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
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    <attribute name="ebas_inlet_type" value="None--open-face filter" />
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    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube -- Data converted on import into EBAS from 'pmol/mol' to 'ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.002591." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/acetonemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="acetone mass concentration" />
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    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
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    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
  </variable>
  <variable name="qc_propanone_ug_per_m3_ExpUnc2s" shape="qc_propanone_ug_per_m3_ExpUnc2s_flags time" type="int">
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    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_propanone_ug_per_m3_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_propene_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_propene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="qc_propene_amean meta_propene_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="propene" />
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    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
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    <attribute name="ebas_calibration_scale" value="NPL" />
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    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
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    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
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    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/propeneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="propene amount fraction" />
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    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
  </variable>
  <variable name="qc_propene_amean" shape="qc_propene_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_propene_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_propene_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_propene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="qc_propene_ExpUnc2s meta_propene_ExpUnc2s" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="propene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
    <attribute name="ebas_secondary_standard_id" value="D618327_20240422" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Includes reproducibility (precision) and systematic errors (accuracy). Ref:http://www.atmos-meas-tech.net/8/2715/2015/" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/propeneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="propene amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gaschromatograph-online" />
    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
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  <variable name="qc_propene_ExpUnc2s" shape="qc_propene_ExpUnc2s_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_propene_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_toluene_ng_per_m3_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_toluene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="qc_toluene_ng_per_m3_amean meta_toluene_ng_per_m3_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="toluene" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
    <attribute name="ebas_secondary_standard_id" value="D618327_20240422" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="4.0 ng/m3" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 4.11. Detection limit converted from '1.0 pmol/mol' to '4.0 ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 4.11." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/toluenemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="toluene mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
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    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
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  <variable name="qc_toluene_ng_per_m3_amean" shape="qc_toluene_ng_per_m3_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_toluene_ng_per_m3_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_toluene_pmol_per_mol_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_toluene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="qc_toluene_pmol_per_mol_amean meta_toluene_pmol_per_mol_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="toluene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
    <attribute name="ebas_secondary_standard_id" value="D618327_20240422" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
    <attribute name="ebas_detection_limit" value="1.0 pmol/mol" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
    <attribute name="ebas_submitter" value="&quot;Dufresne, Marvin, marvin.dufresne@imt-nord-europe.fr, Institut Mine Telecom Nord Europe, IMT NE, CERI EE, 941 rue Charles Bourseul, , 59500, Douai, France&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/tolueneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="toluene amount fraction" />
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    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT0S" />
    <attribute name="actris_access_restriction" type="long" value="1" />
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  <variable name="qc_toluene_pmol_per_mol_amean" shape="qc_toluene_pmol_per_mol_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_toluene_pmol_per_mol_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_toluene_ng_per_m3_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_toluene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="qc_toluene_ng_per_m3_ExpUnc2s meta_toluene_ng_per_m3_ExpUnc2s" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
    <attribute name="ebas_platform_code" value="GB0023S" />
    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
    <attribute name="ebas_station_longitude" type="double" value="-0.037387" />
    <attribute name="ebas_station_altitude" value="31.0 m" />
    <attribute name="ebas_measurement_height" value="12.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="toluene" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="HOP_GCFID_UOY" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_method_ref" value="GB09L_HOP_GCFID_UOY_IMP2024" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D618280" />
    <attribute name="ebas_secondary_standard_id" value="D618327_20240422" />
    <attribute name="ebas_inlet_type" value="None--open-face filter" />
    <attribute name="ebas_inlet_description" value="PTFE tube, 1/4 ID, 4m length, unheated" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Includes reproducibility (precision) and systematic errors (accuracy). Ref:http://www.atmos-meas-tech.net/8/2715/2015/" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Values below the instrument limit of observation are reported as zero with an uncertainty equal to the LOD for that compound" />
    <attribute name="ebas_organization" value="GB09L, Wolfson Atmospheric Chemistry Laboratory, WACL, , Innovation Way, Heslington, YO10 5DD, York, United Kingdom" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
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    <attribute name="missing_value" type="double" value="NaN" />
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    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
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    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
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    <attribute name="ebas_sample_duration" value="25mn" />
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    <attribute name="ebas_regime" value="IMG" />
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    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
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    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
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    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
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    <attribute name="ebas_station_setting" value="Urban and center city" />
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    <attribute name="ebas_regime" value="IMG" />
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    <attribute name="ebas_framework_description" value="" />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
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    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 2.50." />
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    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
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    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-01-13T00:00:00.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
    <attribute name="ebas_station_code" value="GB0023U" />
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    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
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    <attribute name="ebas_station_setting" value="Urban and center city" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="trans-2-butene" />
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    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="GB09L" />
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    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
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    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Hopkins, James, jim.hopkins@york.ac.uk, Wolfson Atmospheric Chemistry Laboratory, WACL, Department of Chemistry, University of York, Heslington, YO10 5DD, York, United Kingdom&quot;" />
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    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube" />
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    <attribute name="ebas_version_description" value="Initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="25mn" />
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    <attribute name="ebas_station_name" value="London - Honor Oak Park" />
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    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="51.449699" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="trans-2-pentene" />
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    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.13. Detection limit converted from '1.0 pmol/mol' to '3.0 ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.13." />
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    <attribute name="ebas_statistics" value="arithmetic mean" />
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    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: CAMPAIGN. Request aknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Water removal is via freeze-out at -40 °C, ozone removal is via a heated stainless steel tube" />
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  <variable name="meta_trans_2_pentene_pmol_per_mol_amean" shape="metadata_time" type="String">
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