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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) and dimethylsulfide at Barcelona (Palau Reial)" />
  <attribute name="summary" value="VOC (volatile organic compounds) and dimethylsulfide at Barcelona (Palau Reial). 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: ['acetonitrile in air (mole_fraction_of_aceto_nitrile_in_air)', 'benzene in air (mole_fraction_of_benzene_in_air)', 'dimethylsulfide in air', 'ethanal in air (mole_fraction_of_ethanal_in_air)', 'ethanal in air (mass_concentration_of_ethanal_in_air)', 'ethanol in air (mole_fraction_of_ethanol_in_air)', 'ethanol in air (mass_concentration_of_ethanol_in_air)', 'isoprene in air (mass_concentration_of_isoprene_in_air)', 'isoprene in air (mole_fraction_of_isoprene_in_air)', 'mass_107.086_organic_compounds in air', 'mass_121_organic_compounds in air', 'mass_59_organic_compounds in air', 'mass_71_organic_compounds in air', 'mass_73.065_organic_compounds in air', 'methanal in air (mole_fraction_of_methanal_in_air)', 'methanal in air (mass_concentration_of_methanal_in_air)', 'methanol in air (mole_fraction_of_methanol_in_air)', 'monoterpenes in air (mole_fraction_of_monoterpenes_in_air)', 'styrene in air (mole_fraction_of_styrene_in_air)', 'styrene in air (mass_concentration_of_styrene_in_air)', 'toluene in air (mole_fraction_of_toluene_in_air)']" />
  <attribute name="keywords" value="&quot;Barcelona (Palau Reial)&quot; ES0019U acetonitrile benzene dimethylsulfide ethanal ethanol isoprene mass_107.086_organic_compounds mass_121_organic_compounds mass_59_organic_compounds mass_71_organic_compounds mass_73.065_organic_compounds methanal methanol monoterpenes styrene toluene air CAMPAIGN mole_fraction_of_aceto_nitrile_in_air mole_fraction_of_benzene_in_air mole_fraction_of_ethanal_in_air mass_concentration_of_ethanal_in_air mole_fraction_of_ethanol_in_air mass_concentration_of_ethanol_in_air mass_concentration_of_isoprene_in_air mole_fraction_of_isoprene_in_air mole_fraction_of_methanal_in_air mass_concentration_of_methanal_in_air mole_fraction_of_methanol_in_air mole_fraction_of_monoterpenes_in_air mole_fraction_of_styrene_in_air mass_concentration_of_styrene_in_air mole_fraction_of_toluene_in_air" />
  <attribute name="id" value="DM5Z-HF94.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="CAMPAIGN" />
  <attribute name="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 acknowledgement details from data originator" />
  <attribute name="doi" value="https://doi.org/10.48597/DM5Z-HF94" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Yañez-Serrano, A., Querol, X., Seco, R., Alastuey, A., CAMPAIGN, 2026, VOC (volatile organic compounds) and dimethylsulfide at Barcelona (Palau Reial), data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/DM5Z-HF94" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="ES05L &quot;Institute of Environmental Assessment and Water Research&quot; IDAEA-CSIC &quot;Jordi Girona 18-26&quot; 08034 Barcelona Spain" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2026-09-21T20:33:08.362083Z" />
  <attribute name="date_metadata_modified" value="2026-09-18T18:56:01Z" />
  <attribute name="creator_name" value="Ana Maria Yañez-Serrano, Xavier Querol, Roger Seco, Andres Alastuey" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value="ana.yanez@idaea.csic.es, , roger.seco@idaea.csic.es, " />
  <attribute name="creator_institution" value="&quot;IDAEA-CSIC, EGAR&quot;, , &quot;IDAEA-CSIC, EGAR&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 (2.11532 41.387463 80)" />
  <attribute name="geospatial_lat_min" type="double" value="41.387463" />
  <attribute name="geospatial_lat_max" type="double" value="41.387463" />
  <attribute name="geospatial_lon_min" type="double" value="2.11532" />
  <attribute name="geospatial_lon_max" type="double" value="2.11532" />
  <attribute name="geospatial_vertical_min" type="double" value="80.0" />
  <attribute name="geospatial_vertical_max" type="double" value="80.0" />
  <attribute name="geospatial_vertical_positive" value="up" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
  <attribute name="time_coverage_start" value="2024-09-01T00:00:00Z" />
  <attribute name="time_coverage_end" value="2024-10-03T11:00:00Z" />
  <attribute name="time_coverage_duration" value="P0000-01-02T11:00:00" />
  <attribute name="time_coverage_resolution" value="P0000-00-00T01:00:00" />
  <attribute name="timezone" value="UTC" />
  <attribute name="ebas_data_definition" value="EBAS_1.1" />
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  <attribute name="ebas_citation" value="Yañez-Serrano, A., Querol, X., Seco, R., Alastuey, A., CAMPAIGN, 2026, VOC (volatile organic compounds) and dimethylsulfide at Barcelona (Palau Reial), data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/DM5Z-HF94" />
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  <attribute name="ebas_file_creation" value="2026-09-21T20:36:16.530709Z" />
  <attribute name="ebas_export_state" value="2026-09-21T20:33:08.362083Z" />
  <attribute name="ebas_export_filter" value="exclude-900,exclude-invalid" />
  <attribute name="ebas_startdate" value="2024-09-01T00:00:00.000000Z" />
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  <attribute name="ebas_version_description" value="first revision, manually inspected -- Processing lev1-lev2: process_lev1_lev2_general V.1.02.00" />
  <attribute name="ebas_data_level" value="2" />
  <attribute name="ebas_period_code" value="32d" />
  <attribute name="ebas_resolution_code" value="1h" />
  <attribute name="ebas_sample_duration" value="1h" />
  <attribute name="ebas_orig_time_res" value="1mn" />
  <attribute name="ebas_station_code" value="ES0019U" />
  <attribute name="ebas_platform_code" value="ES0019S" />
  <attribute name="ebas_station_name" value="Barcelona (Palau Reial)" />
  <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="41.387463" />
  <attribute name="ebas_station_longitude" type="double" value="2.11532" />
  <attribute name="ebas_station_altitude" value="80.0 m" />
  <attribute name="ebas_measurement_height" value="3.0 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_matrix" value="air" />
  <attribute name="ebas_laboratory_code" value="ES05L" />
  <attribute name="ebas_instrument_type" value="PTR-MS" />
  <attribute name="ebas_instrument_name" value="PTR_ToF_MS_PR" />
  <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
  <attribute name="ebas_instrument_model" value="PTR-TOF 4000" />
  <attribute name="ebas_method_ref" value="ES05L_PTR_ToF_MS_PR_IMP2024" />
  <attribute name="ebas_calibration_standard_id" value="D961410" />
  <attribute name="ebas_secondary_standard_id" value="Manufacturer Apel-Riemer; Batch RR02815; Manufacturer Restek; Batch ST0000234655" />
  <attribute name="ebas_inlet_type" value="Downward-facing tube" />
  <attribute name="ebas_inlet_description" value="5m inlet from window inside a rural house in the location. 1/8 PFA line heated and insulated" />
  <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
  <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
  <attribute name="ebas_zero_negative_values" value="measurement below blank average, but anyhow below detection limit" />
  <attribute name="ebas_organization" value="ES05L, Institute of Environmental Assessment and Water Research, IDAEA-CSIC, , Jordi Girona 18-26, , 08034, Barcelona, Spain" />
  <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;Yañez-Serrano, Ana Maria, ana.yanez@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Querol, Xavier, , , , , , , , , &quot;, &quot;Seco, Roger, roger.seco@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Alastuey, Andres, , , , , , , , , &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 acknowledgement details from data originator" />
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  <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="779" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="1" />
  <dimension name="qc_acetonitrile_amean_flags" length="1" />
  <dimension name="qc_acetonitrile_ExpUnc2s_flags" length="2" />
  <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="2" />
  <dimension name="qc_benzene_pmol_per_mol_ExpUnc2s_flags" length="2" />
  <dimension name="qc_dimethylsulfide_flags" length="1" />
  <dimension name="qc_ethanal_nmol_per_mol_amean_flags" length="2" />
  <dimension name="qc_ethanal_ug_per_m3_amean_flags" length="2" />
  <dimension name="qc_ethanal_nmol_per_mol_ExpUnc2s_flags" length="2" />
  <dimension name="qc_ethanal_ug_per_m3_ExpUnc2s_flags" length="2" />
  <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="2" />
  <dimension name="qc_ethanol_ug_per_m3_ExpUnc2s_flags" length="2" />
  <dimension name="qc_isoprene_ng_per_m3_amean_flags" length="2" />
  <dimension name="qc_isoprene_pmol_per_mol_amean_flags" length="2" />
  <dimension name="qc_isoprene_ng_per_m3_ExpUnc2s_flags" length="2" />
  <dimension name="qc_isoprene_pmol_per_mol_ExpUnc2s_flags" length="2" />
  <dimension name="qc_mass_107_086_organic_compounds_amean_flags" length="1" />
  <dimension name="qc_mass_107_086_organic_compounds_ExpUnc2s_flags" length="2" />
  <dimension name="qc_mass_121_organic_compounds_amean_flags" length="2" />
  <dimension name="qc_mass_121_organic_compounds_ExpUnc2s_flags" length="3" />
  <dimension name="qc_mass_59_organic_compounds_amean_flags" length="2" />
  <dimension name="qc_mass_59_organic_compounds_ExpUnc2s_flags" length="2" />
  <dimension name="qc_mass_71_organic_compounds_amean_flags" length="1" />
  <dimension name="qc_mass_71_organic_compounds_ExpUnc2s_flags" length="2" />
  <dimension name="qc_mass_73_065_organic_compounds_amean_flags" length="1" />
  <dimension name="qc_mass_73_065_organic_compounds_ExpUnc2s_flags" length="2" />
  <dimension name="qc_methanal_nmol_per_mol_amean_flags" length="2" />
  <dimension name="qc_methanal_ug_per_m3_amean_flags" length="2" />
  <dimension name="qc_methanal_nmol_per_mol_ExpUnc2s_flags" length="2" />
  <dimension name="qc_methanal_ug_per_m3_ExpUnc2s_flags" length="2" />
  <dimension name="qc_methanol_amean_flags" length="1" />
  <dimension name="qc_methanol_ExpUnc2s_flags" length="2" />
  <dimension name="qc_monoterpenes_amean_flags" length="2" />
  <dimension name="qc_monoterpenes_ExpUnc2s_flags" length="3" />
  <dimension name="qc_styrene_pmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_styrene_ug_per_m3_amean_flags" length="1" />
  <dimension name="qc_styrene_pmol_per_mol_ExpUnc2s_flags" length="2" />
  <dimension name="qc_styrene_ug_per_m3_ExpUnc2s_flags" length="2" />
  <dimension name="qc_toluene_ng_per_m3_amean_flags" length="1" />
  <dimension name="qc_toluene_pmol_per_mol_amean_flags" length="1" />
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  <dimension name="qc_toluene_pmol_per_mol_ExpUnc2s_flags" length="2" />
  <group name="CFMetadata">
    <attribute name="time_coverage_start" value="2024-09-01T00:30:00Z" />
    <attribute name="time_coverage_end" value="2024-10-03T10:30:00Z" />
    <attribute name="time_coverage_units" value="seconds" />
    <attribute name="time_coverage_resolution" value="3600.0" />
    <attribute name="time_coverage_duration" value="P0Y0M32DT10H0M0.000S" />
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  <group name="NCISOMetadata">
    <attribute name="metadata_creation" value="2026-11-04" />
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  <variable name="time_bnds" shape="time tbnds" type="double">
    <attribute name="long_name" value="time bounds for measurement" />
  </variable>
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    <attribute name="long_name" value="time bounds for ebas metadata intervals" />
  </variable>
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    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="qc_acetonitrile_amean meta_acetonitrile_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2026-09-18T18:56:01.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="first revision, manually inspected -- Processing lev1-lev2: process_lev1_lev2_general V.1.02.00" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="ES0019U" />
    <attribute name="ebas_platform_code" value="ES0019S" />
    <attribute name="ebas_station_name" value="Barcelona (Palau Reial)" />
    <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="41.387463" />
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    <attribute name="ebas_component" value="acetonitrile" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="ES05L" />
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    <attribute name="ebas_instrument_name" value="PTR_ToF_MS_PR" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="PTR-TOF 4000" />
    <attribute name="ebas_method_ref" value="ES05L_PTR_ToF_MS_PR_IMP2024" />
    <attribute name="ebas_calibration_scale" value="NPL" />
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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;Yañez-Serrano, Ana Maria, ana.yanez@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Querol, Xavier, , , , , , , , , &quot;, &quot;Seco, Roger, roger.seco@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Alastuey, Andres, , , , , , , , , &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 acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="mass_59_organic_compounds correspond to the compounds with the mass_H+ 59.049, mass_71_prganic_compounds to the compounds with the mass_H+ 71.049 and mass_121_organic_compounds to the compounds with the mass_H+ 121.101. Methanal data have to be considered with caution." />
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    <attribute name="actris_variable_preferred_term" value="acetonitrile amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
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    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
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    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/protontransfermassspectrometer" />
    <attribute name="actris_instrument_type_preferred_term" value="proton transfer mass spectrometer" />
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    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <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="v_acetonitrile_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_aceto_nitrile_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="qc_acetonitrile_ExpUnc2s meta_acetonitrile_ExpUnc2s" />
    <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="first revision, manually inspected -- Processing lev1-lev2: process_lev1_lev2_general V.1.02.00" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="ES0019U" />
    <attribute name="ebas_platform_code" value="ES0019S" />
    <attribute name="ebas_station_name" value="Barcelona (Palau Reial)" />
    <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="41.387463" />
    <attribute name="ebas_station_longitude" type="double" value="2.11532" />
    <attribute name="ebas_station_altitude" value="80.0 m" />
    <attribute name="ebas_measurement_height" value="3.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="acetonitrile" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="ES05L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="PTR_ToF_MS_PR" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="PTR-TOF 4000" />
    <attribute name="ebas_method_ref" value="ES05L_PTR_ToF_MS_PR_IMP2024" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D961410" />
    <attribute name="ebas_secondary_standard_id" value="Manufacturer Apel-Riemer; Batch RR02815; Manufacturer Restek; Batch ST0000234655" />
    <attribute name="ebas_inlet_type" value="Downward-facing tube" />
    <attribute name="ebas_inlet_description" value="5m inlet from window inside a rural house in the location. 1/8 PFA line heated and insulated" />
    <attribute name="ebas_detection_limit" value="5.0 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="measurement below blank average, but anyhow below detection limit" />
    <attribute name="ebas_organization" value="ES05L, Institute of Environmental Assessment and Water Research, IDAEA-CSIC, , Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <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;Yañez-Serrano, Ana Maria, ana.yanez@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Querol, Xavier, , , , , , , , , &quot;, &quot;Seco, Roger, roger.seco@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Alastuey, Andres, , , , , , , , , &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 acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="mass_59_organic_compounds correspond to the compounds with the mass_H+ 59.049, mass_71_prganic_compounds to the compounds with the mass_H+ 71.049 and mass_121_organic_compounds to the compounds with the mass_H+ 121.101. Methanal data have to be considered with caution." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/acetonitrileamountfraction" />
    <attribute name="actris_variable_preferred_term" value="acetonitrile 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" />
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    <attribute name="actris_instrument_type_preferred_term" value="proton transfer mass spectrometer" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="1" />
  </variable>
  <variable name="qc_acetonitrile_ExpUnc2s" shape="qc_acetonitrile_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_acetonitrile_ExpUnc2s" 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="2026-09-18T18:56:01.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="first revision, manually inspected -- Processing lev1-lev2: process_lev1_lev2_general V.1.02.00" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="ES0019U" />
    <attribute name="ebas_platform_code" value="ES0019S" />
    <attribute name="ebas_station_name" value="Barcelona (Palau Reial)" />
    <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="41.387463" />
    <attribute name="ebas_station_longitude" type="double" value="2.11532" />
    <attribute name="ebas_station_altitude" value="80.0 m" />
    <attribute name="ebas_measurement_height" value="3.0 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="ES05L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="PTR_ToF_MS_PR" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="PTR-TOF 4000" />
    <attribute name="ebas_method_ref" value="ES05L_PTR_ToF_MS_PR_IMP2024" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D961410" />
    <attribute name="ebas_secondary_standard_id" value="Manufacturer Apel-Riemer; Batch RR02815; Manufacturer Restek; Batch ST0000234655" />
    <attribute name="ebas_inlet_type" value="Downward-facing tube" />
    <attribute name="ebas_inlet_description" value="5m inlet from window inside a rural house in the location. 1/8 PFA line heated and insulated" />
    <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="10.46 ng/m3" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="measurement below blank average, but anyhow below detection limit" />
    <attribute name="ebas_organization" value="ES05L, Institute of Environmental Assessment and Water Research, IDAEA-CSIC, , Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <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;Yañez-Serrano, Ana Maria, ana.yanez@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Querol, Xavier, , , , , , , , , &quot;, &quot;Seco, Roger, roger.seco@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Alastuey, Andres, , , , , , , , , &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 acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="mass_59_organic_compounds correspond to the compounds with the mass_H+ 59.049, mass_71_prganic_compounds to the compounds with the mass_H+ 71.049 and mass_121_organic_compounds to the compounds with the mass_H+ 121.101. Methanal data have to be considered with caution. -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.4851. Detection limit converted from '3.0 pmol/mol' to '10.46 ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.4851." />
    <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/protontransfermassspectrometer" />
    <attribute name="actris_instrument_type_preferred_term" value="proton transfer mass spectrometer" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <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="2026-09-18T18:56:01.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="first revision, manually inspected -- Processing lev1-lev2: process_lev1_lev2_general V.1.02.00" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="ES0019U" />
    <attribute name="ebas_platform_code" value="ES0019S" />
    <attribute name="ebas_station_name" value="Barcelona (Palau Reial)" />
    <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="41.387463" />
    <attribute name="ebas_station_longitude" type="double" value="2.11532" />
    <attribute name="ebas_station_altitude" value="80.0 m" />
    <attribute name="ebas_measurement_height" value="3.0 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="ES05L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="PTR_ToF_MS_PR" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="PTR-TOF 4000" />
    <attribute name="ebas_method_ref" value="ES05L_PTR_ToF_MS_PR_IMP2024" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D961410" />
    <attribute name="ebas_secondary_standard_id" value="Manufacturer Apel-Riemer; Batch RR02815; Manufacturer Restek; Batch ST0000234655" />
    <attribute name="ebas_inlet_type" value="Downward-facing tube" />
    <attribute name="ebas_inlet_description" value="5m inlet from window inside a rural house in the location. 1/8 PFA line heated and insulated" />
    <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_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="measurement below blank average, but anyhow below detection limit" />
    <attribute name="ebas_organization" value="ES05L, Institute of Environmental Assessment and Water Research, IDAEA-CSIC, , Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <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;Yañez-Serrano, Ana Maria, ana.yanez@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Querol, Xavier, , , , , , , , , &quot;, &quot;Seco, Roger, roger.seco@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Alastuey, Andres, , , , , , , , , &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 acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="mass_59_organic_compounds correspond to the compounds with the mass_H+ 59.049, mass_71_prganic_compounds to the compounds with the mass_H+ 71.049 and mass_121_organic_compounds to the compounds with the mass_H+ 121.101. Methanal data have to be considered with caution." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/benzeneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="benzene amount fraction" />
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    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="1" />
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  <variable name="qc_benzene_pmol_per_mol_amean" shape="qc_benzene_pmol_per_mol_amean_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_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" />
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    <attribute name="ebas_revision_date" value="2026-09-18T18:56:01.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="first revision, manually inspected -- Processing lev1-lev2: process_lev1_lev2_general V.1.02.00" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="ES0019U" />
    <attribute name="ebas_platform_code" value="ES0019S" />
    <attribute name="ebas_station_name" value="Barcelona (Palau Reial)" />
    <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="41.387463" />
    <attribute name="ebas_station_longitude" type="double" value="2.11532" />
    <attribute name="ebas_station_altitude" value="80.0 m" />
    <attribute name="ebas_measurement_height" value="3.0 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="ES05L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="PTR_ToF_MS_PR" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="PTR-TOF 4000" />
    <attribute name="ebas_method_ref" value="ES05L_PTR_ToF_MS_PR_IMP2024" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D961410" />
    <attribute name="ebas_secondary_standard_id" value="Manufacturer Apel-Riemer; Batch RR02815; Manufacturer Restek; Batch ST0000234655" />
    <attribute name="ebas_inlet_type" value="Downward-facing tube" />
    <attribute name="ebas_inlet_description" value="5m inlet from window inside a rural house in the location. 1/8 PFA line heated and insulated" />
    <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="10.46 ng/m3" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="measurement below blank average, but anyhow below detection limit" />
    <attribute name="ebas_organization" value="ES05L, Institute of Environmental Assessment and Water Research, IDAEA-CSIC, , Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <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;Yañez-Serrano, Ana Maria, ana.yanez@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Querol, Xavier, , , , , , , , , &quot;, &quot;Seco, Roger, roger.seco@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Alastuey, Andres, , , , , , , , , &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 acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="mass_59_organic_compounds correspond to the compounds with the mass_H+ 59.049, mass_71_prganic_compounds to the compounds with the mass_H+ 71.049 and mass_121_organic_compounds to the compounds with the mass_H+ 121.101. Methanal data have to be considered with caution. -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.4851. Detection limit converted from '3.0 pmol/mol' to '10.46 ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.4851." />
    <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" />
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    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <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">
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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_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="2026-09-18T18:56:01.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="first revision, manually inspected -- Processing lev1-lev2: process_lev1_lev2_general V.1.02.00" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="ES0019U" />
    <attribute name="ebas_platform_code" value="ES0019S" />
    <attribute name="ebas_station_name" value="Barcelona (Palau Reial)" />
    <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="41.387463" />
    <attribute name="ebas_station_longitude" type="double" value="2.11532" />
    <attribute name="ebas_station_altitude" value="80.0 m" />
    <attribute name="ebas_measurement_height" value="3.0 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="ES05L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="PTR_ToF_MS_PR" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="PTR-TOF 4000" />
    <attribute name="ebas_method_ref" value="ES05L_PTR_ToF_MS_PR_IMP2024" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D961410" />
    <attribute name="ebas_secondary_standard_id" value="Manufacturer Apel-Riemer; Batch RR02815; Manufacturer Restek; Batch ST0000234655" />
    <attribute name="ebas_inlet_type" value="Downward-facing tube" />
    <attribute name="ebas_inlet_description" value="5m inlet from window inside a rural house in the location. 1/8 PFA line heated and insulated" />
    <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_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="measurement below blank average, but anyhow below detection limit" />
    <attribute name="ebas_organization" value="ES05L, Institute of Environmental Assessment and Water Research, IDAEA-CSIC, , Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <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;Yañez-Serrano, Ana Maria, ana.yanez@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Querol, Xavier, , , , , , , , , &quot;, &quot;Seco, Roger, roger.seco@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Alastuey, Andres, , , , , , , , , &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 acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="mass_59_organic_compounds correspond to the compounds with the mass_H+ 59.049, mass_71_prganic_compounds to the compounds with the mass_H+ 71.049 and mass_121_organic_compounds to the compounds with the mass_H+ 121.101. Methanal data have to be considered with caution." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/benzeneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="benzene 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="proton transfer mass spectrometer" />
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    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="1" />
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  <variable name="qc_benzene_pmol_per_mol_ExpUnc2s" shape="qc_benzene_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_benzene_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_dimethylsulfide" 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_dimethylsulfide meta_dimethylsulfide" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2026-09-18T18:56:01.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="first revision, manually inspected -- Processing lev1-lev2: process_lev1_lev2_general V.1.02.00" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="ES0019U" />
    <attribute name="ebas_platform_code" value="ES0019S" />
    <attribute name="ebas_station_name" value="Barcelona (Palau Reial)" />
    <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="41.387463" />
    <attribute name="ebas_station_longitude" type="double" value="2.11532" />
    <attribute name="ebas_station_altitude" value="80.0 m" />
    <attribute name="ebas_measurement_height" value="3.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="dimethylsulfide" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="ES05L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="PTR_ToF_MS_PR" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="PTR-TOF 4000" />
    <attribute name="ebas_method_ref" value="ES05L_PTR_ToF_MS_PR_IMP2024" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D961410" />
    <attribute name="ebas_secondary_standard_id" value="Manufacturer Apel-Riemer; Batch RR02815; Manufacturer Restek; Batch ST0000234655" />
    <attribute name="ebas_inlet_type" value="Downward-facing tube" />
    <attribute name="ebas_inlet_description" value="5m inlet from window inside a rural house in the location. 1/8 PFA line heated and insulated" />
    <attribute name="ebas_detection_limit" value="3.0 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
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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;Yañez-Serrano, Ana Maria, ana.yanez@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Querol, Xavier, , , , , , , , , &quot;, &quot;Seco, Roger, roger.seco@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Alastuey, Andres, , , , , , , , , &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 acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="mass_59_organic_compounds correspond to the compounds with the mass_H+ 59.049, mass_71_prganic_compounds to the compounds with the mass_H+ 71.049 and mass_121_organic_compounds to the compounds with the mass_H+ 121.101. Methanal data have to be considered with caution." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/dimethylsulfideamountfraction" />
    <attribute name="actris_variable_preferred_term" value="dimethyl sulfide amount fraction" />
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    <attribute name="actris_temporal_resolution" value="PT1H" />
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  <variable name="qc_dimethylsulfide" shape="qc_dimethylsulfide_flags time" type="int">
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  </variable>
  <variable name="meta_dimethylsulfide" 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_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="2026-09-18T18:56:01.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="first revision, manually inspected -- Processing lev1-lev2: process_lev1_lev2_general V.1.02.00" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="ES0019U" />
    <attribute name="ebas_platform_code" value="ES0019S" />
    <attribute name="ebas_station_name" value="Barcelona (Palau Reial)" />
    <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="41.387463" />
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    <attribute name="ebas_station_altitude" value="80.0 m" />
    <attribute name="ebas_measurement_height" value="3.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ethanal" />
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    <attribute name="ebas_laboratory_code" value="ES05L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="PTR_ToF_MS_PR" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="PTR-TOF 4000" />
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    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D961410" />
    <attribute name="ebas_secondary_standard_id" value="Manufacturer Apel-Riemer; Batch RR02815; Manufacturer Restek; Batch ST0000234655" />
    <attribute name="ebas_inlet_type" value="Downward-facing tube" />
    <attribute name="ebas_inlet_description" value="5m inlet from window inside a rural house in the location. 1/8 PFA line heated and insulated" />
    <attribute name="ebas_detection_limit" value="0.033 nmol/mol" />
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    <attribute name="ebas_zero_negative_values" value="measurement below blank average, but anyhow below detection limit" />
    <attribute name="ebas_organization" value="ES05L, Institute of Environmental Assessment and Water Research, IDAEA-CSIC, , Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
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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;Yañez-Serrano, Ana Maria, ana.yanez@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Querol, Xavier, , , , , , , , , &quot;, &quot;Seco, Roger, roger.seco@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Alastuey, Andres, , , , , , , , , &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 acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="mass_59_organic_compounds correspond to the compounds with the mass_H+ 59.049, mass_71_prganic_compounds to the compounds with the mass_H+ 71.049 and mass_121_organic_compounds to the compounds with the mass_H+ 121.101. Methanal data have to be considered with caution. -- Data converted on import into EBAS from 'pmol/mol' to 'ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.001965444. Detection limit converted from '33.0 pmol/mol' to '0.0648597 ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.001965444. -- Data converted on export from EBAS from 'ug/m3' at 273.15 K, 1013.25 hPa to 'nmol/mol', conversion factor 0.50879088. Detection limit converted from '0.0648597 ug/m3' at 273.15 K, 1013.25 hPa to '0.033 nmol/mol', conversion factor 0.50879088." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/acetaldehydeamountfraction" />
    <attribute name="actris_variable_preferred_term" value="acetaldehyde amount fraction" />
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    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="1" />
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  <variable name="qc_ethanal_nmol_per_mol_amean" shape="qc_ethanal_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" />
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  <variable name="meta_ethanal_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_ethanal_ug_per_m3_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_ethanal_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="qc_ethanal_ug_per_m3_amean meta_ethanal_ug_per_m3_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2026-09-18T18:56:01.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="first revision, manually inspected -- Processing lev1-lev2: process_lev1_lev2_general V.1.02.00" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="ES0019U" />
    <attribute name="ebas_platform_code" value="ES0019S" />
    <attribute name="ebas_station_name" value="Barcelona (Palau Reial)" />
    <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_laboratory_code" value="ES05L" />
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    <attribute name="ebas_instrument_name" value="PTR_ToF_MS_PR" />
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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_organization" value="ES05L, Institute of Environmental Assessment and Water Research, IDAEA-CSIC, , Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <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;Yañez-Serrano, Ana Maria, ana.yanez@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Querol, Xavier, , , , , , , , , &quot;, &quot;Seco, Roger, roger.seco@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Alastuey, Andres, , , , , , , , , &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 acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="mass_59_organic_compounds correspond to the compounds with the mass_H+ 59.049, mass_71_prganic_compounds to the compounds with the mass_H+ 71.049 and mass_121_organic_compounds to the compounds with the mass_H+ 121.101. Methanal data have to be considered with caution. -- Data converted on import into EBAS from 'pmol/mol' to 'ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.001965444. Detection limit converted from '33.0 pmol/mol' to '0.0648597 ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.001965444." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/acetaldehydemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="acetaldehyde mass concentration" />
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    <attribute name="actris_access_restriction" type="long" value="1" />
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  <variable name="qc_ethanal_ug_per_m3_amean" shape="qc_ethanal_ug_per_m3_amean_flags time" type="int">
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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_ethanal_ug_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="ebas_sample_duration" value="1h" />
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    <attribute name="ebas_platform_code" value="ES0019S" />
    <attribute name="ebas_station_name" value="Barcelona (Palau Reial)" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ethanal" />
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    <attribute name="ebas_instrument_name" value="PTR_ToF_MS_PR" />
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    <attribute name="ebas_inlet_description" value="5m inlet from window inside a rural house in the location. 1/8 PFA line heated and insulated" />
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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" />
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    <attribute name="ebas_comment" value="mass_59_organic_compounds correspond to the compounds with the mass_H+ 59.049, mass_71_prganic_compounds to the compounds with the mass_H+ 71.049 and mass_121_organic_compounds to the compounds with the mass_H+ 121.101. Methanal data have to be considered with caution. -- Data converted on import into EBAS from 'pmol/mol' to 'ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.001965444. Detection limit converted from '33.0 pmol/mol' to '0.0648597 ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.001965444. -- Data converted on export from EBAS from 'ug/m3' at 273.15 K, 1013.25 hPa to 'nmol/mol', conversion factor 0.50879088. Detection limit converted from '0.0648597 ug/m3' at 273.15 K, 1013.25 hPa to '0.033 nmol/mol', conversion factor 0.50879088." />
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    <attribute name="ebas_regime" value="IMG" />
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    <attribute name="ebas_instrument_type" value="PTR-MS" />
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    <attribute name="ebas_framework_contact_name" value="Wenche Aas" />
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    <attribute name="ebas_originator" value="&quot;Yañez-Serrano, Ana Maria, ana.yanez@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Querol, Xavier, , , , , , , , , &quot;, &quot;Seco, Roger, roger.seco@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Alastuey, Andres, , , , , , , , , &quot;" />
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    <attribute name="ebas_comment" value="mass_59_organic_compounds correspond to the compounds with the mass_H+ 59.049, mass_71_prganic_compounds to the compounds with the mass_H+ 71.049 and mass_121_organic_compounds to the compounds with the mass_H+ 121.101. Methanal data have to be considered with caution. -- Data converted on import into EBAS from 'pmol/mol' to 'ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.001965444. Detection limit converted from '33.0 pmol/mol' to '0.0648597 ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.001965444." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/acetaldehydemassconcentration" />
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  <variable name="qc_ethanal_ug_per_m3_ExpUnc2s" shape="qc_ethanal_ug_per_m3_ExpUnc2s_flags time" type="int">
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  <variable name="meta_ethanal_ug_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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    <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="2026-09-18T18:56:01.000000Z" />
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    <attribute name="ebas_version_description" value="first revision, manually inspected -- Processing lev1-lev2: process_lev1_lev2_general V.1.02.00" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
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    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ethanol" />
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    <attribute name="ebas_instrument_name" value="PTR_ToF_MS_PR" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
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    <attribute name="ebas_inlet_description" value="5m inlet from window inside a rural house in the location. 1/8 PFA line heated and insulated" />
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    <attribute name="ebas_organization" value="ES05L, Institute of Environmental Assessment and Water Research, IDAEA-CSIC, , Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
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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;Yañez-Serrano, Ana Maria, ana.yanez@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Querol, Xavier, , , , , , , , , &quot;, &quot;Seco, Roger, roger.seco@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Alastuey, Andres, , , , , , , , , &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 acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="mass_59_organic_compounds correspond to the compounds with the mass_H+ 59.049, mass_71_prganic_compounds to the compounds with the mass_H+ 71.049 and mass_121_organic_compounds to the compounds with the mass_H+ 121.101. Methanal data have to be considered with caution. -- Data converted on import into EBAS from 'pmol/mol' to 'ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.002055388. Detection limit converted from '90.0 pmol/mol' to '0.1849849 ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.002055388. -- Data converted on export from EBAS from 'ug/m3' at 273.15 K, 1013.25 hPa to 'nmol/mol', conversion factor 0.486526157. Detection limit converted from '0.1849849 ug/m3' at 273.15 K, 1013.25 hPa to '0.09 nmol/mol', conversion factor 0.486526157." />
    <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/protontransfermassspectrometer" />
    <attribute name="actris_instrument_type_preferred_term" value="proton transfer mass spectrometer" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <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="2026-09-18T18:56:01.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="first revision, manually inspected -- Processing lev1-lev2: process_lev1_lev2_general V.1.02.00" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="ES0019U" />
    <attribute name="ebas_platform_code" value="ES0019S" />
    <attribute name="ebas_station_name" value="Barcelona (Palau Reial)" />
    <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="41.387463" />
    <attribute name="ebas_station_longitude" type="double" value="2.11532" />
    <attribute name="ebas_station_altitude" value="80.0 m" />
    <attribute name="ebas_measurement_height" value="3.0 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="ES05L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="PTR_ToF_MS_PR" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="PTR-TOF 4000" />
    <attribute name="ebas_method_ref" value="ES05L_PTR_ToF_MS_PR_IMP2024" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D961410" />
    <attribute name="ebas_secondary_standard_id" value="Manufacturer Apel-Riemer; Batch RR02815; Manufacturer Restek; Batch ST0000234655" />
    <attribute name="ebas_inlet_type" value="Downward-facing tube" />
    <attribute name="ebas_inlet_description" value="5m inlet from window inside a rural house in the location. 1/8 PFA line heated and insulated" />
    <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="0.1849849 ug/m3" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="measurement below blank average, but anyhow below detection limit" />
    <attribute name="ebas_organization" value="ES05L, Institute of Environmental Assessment and Water Research, IDAEA-CSIC, , Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <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;Yañez-Serrano, Ana Maria, ana.yanez@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Querol, Xavier, , , , , , , , , &quot;, &quot;Seco, Roger, roger.seco@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Alastuey, Andres, , , , , , , , , &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 acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="mass_59_organic_compounds correspond to the compounds with the mass_H+ 59.049, mass_71_prganic_compounds to the compounds with the mass_H+ 71.049 and mass_121_organic_compounds to the compounds with the mass_H+ 121.101. Methanal data have to be considered with caution. -- Data converted on import into EBAS from 'pmol/mol' to 'ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.002055388. Detection limit converted from '90.0 pmol/mol' to '0.1849849 ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.002055388." />
    <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/protontransfermassspectrometer" />
    <attribute name="actris_instrument_type_preferred_term" value="proton transfer mass spectrometer" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <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="2026-09-18T18:56:01.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="first revision, manually inspected -- Processing lev1-lev2: process_lev1_lev2_general V.1.02.00" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="ES0019U" />
    <attribute name="ebas_platform_code" value="ES0019S" />
    <attribute name="ebas_station_name" value="Barcelona (Palau Reial)" />
    <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="41.387463" />
    <attribute name="ebas_station_longitude" type="double" value="2.11532" />
    <attribute name="ebas_station_altitude" value="80.0 m" />
    <attribute name="ebas_measurement_height" value="3.0 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="ES05L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="PTR_ToF_MS_PR" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="PTR-TOF 4000" />
    <attribute name="ebas_method_ref" value="ES05L_PTR_ToF_MS_PR_IMP2024" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D961410" />
    <attribute name="ebas_secondary_standard_id" value="Manufacturer Apel-Riemer; Batch RR02815; Manufacturer Restek; Batch ST0000234655" />
    <attribute name="ebas_inlet_type" value="Downward-facing tube" />
    <attribute name="ebas_inlet_description" value="5m inlet from window inside a rural house in the location. 1/8 PFA line heated and insulated" />
    <attribute name="ebas_detection_limit" value="0.09 nmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="measurement below blank average, but anyhow below detection limit" />
    <attribute name="ebas_organization" value="ES05L, Institute of Environmental Assessment and Water Research, IDAEA-CSIC, , Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <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;Yañez-Serrano, Ana Maria, ana.yanez@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Querol, Xavier, , , , , , , , , &quot;, &quot;Seco, Roger, roger.seco@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Alastuey, Andres, , , , , , , , , &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 acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="mass_59_organic_compounds correspond to the compounds with the mass_H+ 59.049, mass_71_prganic_compounds to the compounds with the mass_H+ 71.049 and mass_121_organic_compounds to the compounds with the mass_H+ 121.101. Methanal data have to be considered with caution. -- Data converted on import into EBAS from 'pmol/mol' to 'ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.002055388. Detection limit converted from '90.0 pmol/mol' to '0.1849849 ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.002055388. -- Data converted on export from EBAS from 'ug/m3' at 273.15 K, 1013.25 hPa to 'nmol/mol', conversion factor 0.486526157. Detection limit converted from '0.1849849 ug/m3' at 273.15 K, 1013.25 hPa to '0.09 nmol/mol', conversion factor 0.486526157." />
    <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/protontransfermassspectrometer" />
    <attribute name="actris_instrument_type_preferred_term" value="proton transfer mass spectrometer" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <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="2026-09-18T18:56:01.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="first revision, manually inspected -- Processing lev1-lev2: process_lev1_lev2_general V.1.02.00" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="ES0019U" />
    <attribute name="ebas_platform_code" value="ES0019S" />
    <attribute name="ebas_station_name" value="Barcelona (Palau Reial)" />
    <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="41.387463" />
    <attribute name="ebas_station_longitude" type="double" value="2.11532" />
    <attribute name="ebas_station_altitude" value="80.0 m" />
    <attribute name="ebas_measurement_height" value="3.0 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="ES05L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="PTR_ToF_MS_PR" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="PTR-TOF 4000" />
    <attribute name="ebas_method_ref" value="ES05L_PTR_ToF_MS_PR_IMP2024" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D961410" />
    <attribute name="ebas_secondary_standard_id" value="Manufacturer Apel-Riemer; Batch RR02815; Manufacturer Restek; Batch ST0000234655" />
    <attribute name="ebas_inlet_type" value="Downward-facing tube" />
    <attribute name="ebas_inlet_description" value="5m inlet from window inside a rural house in the location. 1/8 PFA line heated and insulated" />
    <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="0.1849849 ug/m3" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="measurement below blank average, but anyhow below detection limit" />
    <attribute name="ebas_organization" value="ES05L, Institute of Environmental Assessment and Water Research, IDAEA-CSIC, , Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <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;Yañez-Serrano, Ana Maria, ana.yanez@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Querol, Xavier, , , , , , , , , &quot;, &quot;Seco, Roger, roger.seco@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Alastuey, Andres, , , , , , , , , &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 acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="mass_59_organic_compounds correspond to the compounds with the mass_H+ 59.049, mass_71_prganic_compounds to the compounds with the mass_H+ 71.049 and mass_121_organic_compounds to the compounds with the mass_H+ 121.101. Methanal data have to be considered with caution. -- Data converted on import into EBAS from 'pmol/mol' to 'ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.002055388. Detection limit converted from '90.0 pmol/mol' to '0.1849849 ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.002055388." />
    <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/protontransfermassspectrometer" />
    <attribute name="actris_instrument_type_preferred_term" value="proton transfer mass spectrometer" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <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_isoprene_ng_per_m3_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_isoprene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="qc_isoprene_ng_per_m3_amean meta_isoprene_ng_per_m3_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2026-09-18T18:56:01.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="first revision, manually inspected -- Processing lev1-lev2: process_lev1_lev2_general V.1.02.00" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="ES0019U" />
    <attribute name="ebas_platform_code" value="ES0019S" />
    <attribute name="ebas_station_name" value="Barcelona (Palau Reial)" />
    <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="41.387463" />
    <attribute name="ebas_station_longitude" type="double" value="2.11532" />
    <attribute name="ebas_station_altitude" value="80.0 m" />
    <attribute name="ebas_measurement_height" value="3.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="isoprene" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="ES05L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="PTR_ToF_MS_PR" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="PTR-TOF 4000" />
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    <attribute name="ebas_calibration_scale" value="NPL" />
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    <attribute name="ebas_secondary_standard_id" value="Manufacturer Apel-Riemer; Batch RR02815; Manufacturer Restek; Batch ST0000234655" />
    <attribute name="ebas_inlet_type" value="Downward-facing tube" />
    <attribute name="ebas_inlet_description" value="5m inlet from window inside a rural house in the location. 1/8 PFA line heated and insulated" />
    <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="21.27 ng/m3" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
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    <attribute name="ebas_organization" value="ES05L, Institute of Environmental Assessment and Water Research, IDAEA-CSIC, , Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <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;Yañez-Serrano, Ana Maria, ana.yanez@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Querol, Xavier, , , , , , , , , &quot;, &quot;Seco, Roger, roger.seco@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Alastuey, Andres, , , , , , , , , &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 acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="mass_59_organic_compounds correspond to the compounds with the mass_H+ 59.049, mass_71_prganic_compounds to the compounds with the mass_H+ 71.049 and mass_121_organic_compounds to the compounds with the mass_H+ 121.101. Methanal data have to be considered with caution. -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.0391. Detection limit converted from '7.0 pmol/mol' to '21.27 ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.0391." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/isoprenemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="isoprene mass concentration" />
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    <attribute name="actris_instrument_type_preferred_term" value="proton transfer mass spectrometer" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="1" />
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  <variable name="qc_isoprene_ng_per_m3_amean" shape="qc_isoprene_ng_per_m3_amean_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" />
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  <variable name="meta_isoprene_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_isoprene_pmol_per_mol_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_isoprene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="qc_isoprene_pmol_per_mol_amean meta_isoprene_pmol_per_mol_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2026-09-18T18:56:01.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="first revision, manually inspected -- Processing lev1-lev2: process_lev1_lev2_general V.1.02.00" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="ES0019U" />
    <attribute name="ebas_platform_code" value="ES0019S" />
    <attribute name="ebas_station_name" value="Barcelona (Palau Reial)" />
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    <attribute name="ebas_station_setting" value="Urban and center city" />
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    <attribute name="ebas_station_longitude" type="double" value="2.11532" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="isoprene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="ES05L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="PTR_ToF_MS_PR" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="PTR-TOF 4000" />
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    <attribute name="ebas_calibration_scale" value="NPL" />
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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;Yañez-Serrano, Ana Maria, ana.yanez@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Querol, Xavier, , , , , , , , , &quot;, &quot;Seco, Roger, roger.seco@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Alastuey, Andres, , , , , , , , , &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 acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="mass_59_organic_compounds correspond to the compounds with the mass_H+ 59.049, mass_71_prganic_compounds to the compounds with the mass_H+ 71.049 and mass_121_organic_compounds to the compounds with the mass_H+ 121.101. Methanal data have to be considered with caution." />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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  <variable name="v_isoprene_ng_per_m3_ExpUnc2s" shape="time" type="double">
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    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
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    <attribute name="ebas_station_latitude" type="double" value="41.387463" />
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    <attribute name="ebas_regime" value="IMG" />
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    <attribute name="ebas_instrument_name" value="PTR_ToF_MS_PR" />
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    <attribute name="ebas_originator" value="&quot;Yañez-Serrano, Ana Maria, ana.yanez@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Querol, Xavier, , , , , , , , , &quot;, &quot;Seco, Roger, roger.seco@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Alastuey, Andres, , , , , , , , , &quot;" />
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    <attribute name="ebas_comment" value="mass_59_organic_compounds correspond to the compounds with the mass_H+ 59.049, mass_71_prganic_compounds to the compounds with the mass_H+ 71.049 and mass_121_organic_compounds to the compounds with the mass_H+ 121.101. Methanal data have to be considered with caution. -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.0391. Detection limit converted from '7.0 pmol/mol' to '21.27 ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.0391." />
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    <attribute name="actris_variable_preferred_term" value="isoprene mass concentration" />
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  <variable name="qc_isoprene_ng_per_m3_ExpUnc2s" shape="qc_isoprene_ng_per_m3_ExpUnc2s_flags time" type="int">
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  <variable name="meta_isoprene_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_isoprene_pmol_per_mol_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_isoprene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="qc_isoprene_pmol_per_mol_ExpUnc2s meta_isoprene_pmol_per_mol_ExpUnc2s" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
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    <attribute name="ebas_revision_date" value="2026-09-18T18:56:01.000000Z" />
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    <attribute name="ebas_version_description" value="first revision, manually inspected -- Processing lev1-lev2: process_lev1_lev2_general V.1.02.00" />
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    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="ES0019U" />
    <attribute name="ebas_platform_code" value="ES0019S" />
    <attribute name="ebas_station_name" value="Barcelona (Palau Reial)" />
    <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="41.387463" />
    <attribute name="ebas_station_longitude" type="double" value="2.11532" />
    <attribute name="ebas_station_altitude" value="80.0 m" />
    <attribute name="ebas_measurement_height" value="3.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="isoprene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="ES05L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="PTR_ToF_MS_PR" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="PTR-TOF 4000" />
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    <attribute name="ebas_calibration_scale" value="NPL" />
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    <attribute name="ebas_instrument_name" value="PTR_ToF_MS_PR" />
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    <attribute name="ebas_instrument_model" value="PTR-TOF 4000" />
    <attribute name="ebas_method_ref" value="ES05L_PTR_ToF_MS_PR_IMP2024" />
    <attribute name="ebas_calibration_standard_id" value="D961410" />
    <attribute name="ebas_secondary_standard_id" value="Manufacturer Apel-Riemer; Batch RR02815; Manufacturer Restek; Batch ST0000234655" />
    <attribute name="ebas_inlet_type" value="Downward-facing tube" />
    <attribute name="ebas_inlet_description" value="5m inlet from window inside a rural house in the location. 1/8 PFA line heated and insulated" />
    <attribute name="ebas_detection_limit" value="0.061 nmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="measurement below blank average, but anyhow below detection limit" />
    <attribute name="ebas_organization" value="ES05L, Institute of Environmental Assessment and Water Research, IDAEA-CSIC, , Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <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;Yañez-Serrano, Ana Maria, ana.yanez@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Querol, Xavier, , , , , , , , , &quot;, &quot;Seco, Roger, roger.seco@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Alastuey, Andres, , , , , , , , , &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 acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="mass_59_organic_compounds correspond to the compounds with the mass_H+ 59.049, mass_71_prganic_compounds to the compounds with the mass_H+ 71.049 and mass_121_organic_compounds to the compounds with the mass_H+ 121.101. Methanal data have to be considered with caution. -- Data converted on import into EBAS from 'pmol/mol' to 'ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.001339629. Detection limit converted from '61.0 pmol/mol' to '0.0817174 ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.001339629. -- Data converted on export from EBAS from 'ug/m3' at 273.15 K, 1013.25 hPa to 'nmol/mol', conversion factor 0.74647537. Detection limit converted from '0.0817174 ug/m3' at 273.15 K, 1013.25 hPa to '0.061 nmol/mol', conversion factor 0.74647537." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/formaldehydeamountfraction" />
    <attribute name="actris_variable_preferred_term" value="formaldehyde 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="proton transfer mass spectrometer" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="1" />
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  <variable name="qc_methanal_nmol_per_mol_amean" shape="qc_methanal_nmol_per_mol_amean_flags time" type="int">
    <attribute name="units" value="1" />
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
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  <variable name="meta_methanal_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_methanal_ug_per_m3_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_methanal_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="qc_methanal_ug_per_m3_amean meta_methanal_ug_per_m3_amean" />
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    <attribute name="ebas_data_license" value="" />
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    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="first revision, manually inspected -- Processing lev1-lev2: process_lev1_lev2_general V.1.02.00" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="ES0019U" />
    <attribute name="ebas_platform_code" value="ES0019S" />
    <attribute name="ebas_station_name" value="Barcelona (Palau Reial)" />
    <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="41.387463" />
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    <attribute name="ebas_station_altitude" value="80.0 m" />
    <attribute name="ebas_measurement_height" value="3.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="methanal" />
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    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="ES05L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="PTR_ToF_MS_PR" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="PTR-TOF 4000" />
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    <attribute name="ebas_inlet_description" value="5m inlet from window inside a rural house in the location. 1/8 PFA line heated and insulated" />
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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" value="measurement below blank average, but anyhow below detection limit" />
    <attribute name="ebas_organization" value="ES05L, Institute of Environmental Assessment and Water Research, IDAEA-CSIC, , Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <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;Yañez-Serrano, Ana Maria, ana.yanez@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Querol, Xavier, , , , , , , , , &quot;, &quot;Seco, Roger, roger.seco@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Alastuey, Andres, , , , , , , , , &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 acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="mass_59_organic_compounds correspond to the compounds with the mass_H+ 59.049, mass_71_prganic_compounds to the compounds with the mass_H+ 71.049 and mass_121_organic_compounds to the compounds with the mass_H+ 121.101. Methanal data have to be considered with caution. -- Data converted on import into EBAS from 'pmol/mol' to 'ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.001339629. Detection limit converted from '61.0 pmol/mol' to '0.0817174 ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.001339629." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/formaldehydemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="formaldehyde mass concentration" />
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    <attribute name="actris_temporal_resolution" value="PT1H" />
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  <variable name="qc_methanal_ug_per_m3_amean" shape="qc_methanal_ug_per_m3_amean_flags time" type="int">
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    <attribute name="missing_value" type="int" value="0" />
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  <variable name="meta_methanal_ug_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="ebas_sample_duration" value="1h" />
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    <attribute name="ebas_station_altitude" value="80.0 m" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="methanal" />
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    <attribute name="ebas_instrument_name" value="PTR_ToF_MS_PR" />
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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" />
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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 acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="mass_59_organic_compounds correspond to the compounds with the mass_H+ 59.049, mass_71_prganic_compounds to the compounds with the mass_H+ 71.049 and mass_121_organic_compounds to the compounds with the mass_H+ 121.101. Methanal data have to be considered with caution. -- Data converted on import into EBAS from 'pmol/mol' to 'ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.001339629. Detection limit converted from '61.0 pmol/mol' to '0.0817174 ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.001339629. -- Data converted on export from EBAS from 'ug/m3' at 273.15 K, 1013.25 hPa to 'nmol/mol', conversion factor 0.74647537. Detection limit converted from '0.0817174 ug/m3' at 273.15 K, 1013.25 hPa to '0.061 nmol/mol', conversion factor 0.74647537." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/formaldehydeamountfraction" />
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  <variable name="qc_methanal_nmol_per_mol_ExpUnc2s" shape="qc_methanal_nmol_per_mol_ExpUnc2s_flags time" type="int">
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  <variable name="meta_methanal_nmol_per_mol_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_methanal_ug_per_m3_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_methanal_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="2026-09-18T18:56:01.000000Z" />
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    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
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    <attribute name="ebas_station_name" value="Barcelona (Palau Reial)" />
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    <attribute name="ebas_station_latitude" type="double" value="41.387463" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="methanal" />
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    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="PTR_ToF_MS_PR" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="PTR-TOF 4000" />
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    <attribute name="ebas_organization" value="ES05L, Institute of Environmental Assessment and Water Research, IDAEA-CSIC, , Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
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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;Yañez-Serrano, Ana Maria, ana.yanez@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Querol, Xavier, , , , , , , , , &quot;, &quot;Seco, Roger, roger.seco@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Alastuey, Andres, , , , , , , , , &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 acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="mass_59_organic_compounds correspond to the compounds with the mass_H+ 59.049, mass_71_prganic_compounds to the compounds with the mass_H+ 71.049 and mass_121_organic_compounds to the compounds with the mass_H+ 121.101. Methanal data have to be considered with caution. -- Data converted on import into EBAS from 'pmol/mol' to 'ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.001339629. Detection limit converted from '61.0 pmol/mol' to '0.0817174 ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.001339629." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/formaldehydemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="formaldehyde 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/protontransfermassspectrometer" />
    <attribute name="actris_instrument_type_preferred_term" value="proton transfer mass spectrometer" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="1" />
  </variable>
  <variable name="qc_methanal_ug_per_m3_ExpUnc2s" shape="qc_methanal_ug_per_m3_ExpUnc2s_flags time" type="int">
    <attribute name="units" value="1" />
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
  </variable>
  <variable name="meta_methanal_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_methanol_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_methanol_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="qc_methanol_amean meta_methanol_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2026-09-18T18:56:01.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="first revision, manually inspected -- Processing lev1-lev2: process_lev1_lev2_general V.1.02.00" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="ES0019U" />
    <attribute name="ebas_platform_code" value="ES0019S" />
    <attribute name="ebas_station_name" value="Barcelona (Palau Reial)" />
    <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="41.387463" />
    <attribute name="ebas_station_longitude" type="double" value="2.11532" />
    <attribute name="ebas_station_altitude" value="80.0 m" />
    <attribute name="ebas_measurement_height" value="3.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="methanol" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="ES05L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="PTR_ToF_MS_PR" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="PTR-TOF 4000" />
    <attribute name="ebas_method_ref" value="ES05L_PTR_ToF_MS_PR_IMP2024" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D961410" />
    <attribute name="ebas_secondary_standard_id" value="Manufacturer Apel-Riemer; Batch RR02815; Manufacturer Restek; Batch ST0000234655" />
    <attribute name="ebas_inlet_type" value="Downward-facing tube" />
    <attribute name="ebas_inlet_description" value="5m inlet from window inside a rural house in the location. 1/8 PFA line heated and insulated" />
    <attribute name="ebas_detection_limit" value="45.0 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="measurement below blank average, but anyhow below detection limit" />
    <attribute name="ebas_organization" value="ES05L, Institute of Environmental Assessment and Water Research, IDAEA-CSIC, , Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <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;Yañez-Serrano, Ana Maria, ana.yanez@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Querol, Xavier, , , , , , , , , &quot;, &quot;Seco, Roger, roger.seco@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Alastuey, Andres, , , , , , , , , &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 acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="mass_59_organic_compounds correspond to the compounds with the mass_H+ 59.049, mass_71_prganic_compounds to the compounds with the mass_H+ 71.049 and mass_121_organic_compounds to the compounds with the mass_H+ 121.101. Methanal data have to be considered with caution." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/methanolamountfraction" />
    <attribute name="actris_variable_preferred_term" value="methanol 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/protontransfermassspectrometer" />
    <attribute name="actris_instrument_type_preferred_term" value="proton transfer mass spectrometer" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="1" />
  </variable>
  <variable name="qc_methanol_amean" shape="qc_methanol_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_methanol_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_methanol_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_methanol_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="qc_methanol_ExpUnc2s meta_methanol_ExpUnc2s" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2026-09-18T18:56:01.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="first revision, manually inspected -- Processing lev1-lev2: process_lev1_lev2_general V.1.02.00" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="ES0019U" />
    <attribute name="ebas_platform_code" value="ES0019S" />
    <attribute name="ebas_station_name" value="Barcelona (Palau Reial)" />
    <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="41.387463" />
    <attribute name="ebas_station_longitude" type="double" value="2.11532" />
    <attribute name="ebas_station_altitude" value="80.0 m" />
    <attribute name="ebas_measurement_height" value="3.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="methanol" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="ES05L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="PTR_ToF_MS_PR" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="PTR-TOF 4000" />
    <attribute name="ebas_method_ref" value="ES05L_PTR_ToF_MS_PR_IMP2024" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D961410" />
    <attribute name="ebas_secondary_standard_id" value="Manufacturer Apel-Riemer; Batch RR02815; Manufacturer Restek; Batch ST0000234655" />
    <attribute name="ebas_inlet_type" value="Downward-facing tube" />
    <attribute name="ebas_inlet_description" value="5m inlet from window inside a rural house in the location. 1/8 PFA line heated and insulated" />
    <attribute name="ebas_detection_limit" value="45.0 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="measurement below blank average, but anyhow below detection limit" />
    <attribute name="ebas_organization" value="ES05L, Institute of Environmental Assessment and Water Research, IDAEA-CSIC, , Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <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;Yañez-Serrano, Ana Maria, ana.yanez@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Querol, Xavier, , , , , , , , , &quot;, &quot;Seco, Roger, roger.seco@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Alastuey, Andres, , , , , , , , , &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 acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="mass_59_organic_compounds correspond to the compounds with the mass_H+ 59.049, mass_71_prganic_compounds to the compounds with the mass_H+ 71.049 and mass_121_organic_compounds to the compounds with the mass_H+ 121.101. Methanal data have to be considered with caution." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/methanolamountfraction" />
    <attribute name="actris_variable_preferred_term" value="methanol 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="proton transfer mass spectrometer" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="1" />
  </variable>
  <variable name="qc_methanol_ExpUnc2s" shape="qc_methanol_ExpUnc2s_flags time" type="int">
    <attribute name="units" value="1" />
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
  </variable>
  <variable name="meta_methanol_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_monoterpenes_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_monoterpenes_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="qc_monoterpenes_amean meta_monoterpenes_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2026-09-18T18:56:01.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="first revision, manually inspected -- Processing lev1-lev2: process_lev1_lev2_general V.1.02.00" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="ES0019U" />
    <attribute name="ebas_platform_code" value="ES0019S" />
    <attribute name="ebas_station_name" value="Barcelona (Palau Reial)" />
    <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="41.387463" />
    <attribute name="ebas_station_longitude" type="double" value="2.11532" />
    <attribute name="ebas_station_altitude" value="80.0 m" />
    <attribute name="ebas_measurement_height" value="3.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="monoterpenes" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="ES05L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="PTR_ToF_MS_PR" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="PTR-TOF 4000" />
    <attribute name="ebas_method_ref" value="ES05L_PTR_ToF_MS_PR_IMP2024" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D961410" />
    <attribute name="ebas_secondary_standard_id" value="Manufacturer Apel-Riemer; Batch RR02815; Manufacturer Restek; Batch ST0000234655" />
    <attribute name="ebas_inlet_type" value="Downward-facing tube" />
    <attribute name="ebas_inlet_description" value="5m inlet from window inside a rural house in the location. 1/8 PFA line heated and insulated" />
    <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_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="measurement below blank average, but anyhow below detection limit" />
    <attribute name="ebas_organization" value="ES05L, Institute of Environmental Assessment and Water Research, IDAEA-CSIC, , Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <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;Yañez-Serrano, Ana Maria, ana.yanez@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Querol, Xavier, , , , , , , , , &quot;, &quot;Seco, Roger, roger.seco@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Alastuey, Andres, , , , , , , , , &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 acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="mass_59_organic_compounds correspond to the compounds with the mass_H+ 59.049, mass_71_prganic_compounds to the compounds with the mass_H+ 71.049 and mass_121_organic_compounds to the compounds with the mass_H+ 121.101. Methanal data have to be considered with caution." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/monoterpenesamountfraction" />
    <attribute name="actris_variable_preferred_term" value="monoterpenes 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="proton transfer mass spectrometer" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="1" />
  </variable>
  <variable name="qc_monoterpenes_amean" shape="qc_monoterpenes_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_monoterpenes_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_monoterpenes_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_monoterpenes_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="qc_monoterpenes_ExpUnc2s meta_monoterpenes_ExpUnc2s" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2026-09-18T18:56:01.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="first revision, manually inspected -- Processing lev1-lev2: process_lev1_lev2_general V.1.02.00" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="ES0019U" />
    <attribute name="ebas_platform_code" value="ES0019S" />
    <attribute name="ebas_station_name" value="Barcelona (Palau Reial)" />
    <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="41.387463" />
    <attribute name="ebas_station_longitude" type="double" value="2.11532" />
    <attribute name="ebas_station_altitude" value="80.0 m" />
    <attribute name="ebas_measurement_height" value="3.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="monoterpenes" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="ES05L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="PTR_ToF_MS_PR" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="PTR-TOF 4000" />
    <attribute name="ebas_method_ref" value="ES05L_PTR_ToF_MS_PR_IMP2024" />
    <attribute name="ebas_calibration_scale" value="NPL" />
    <attribute name="ebas_calibration_standard_id" value="D961410" />
    <attribute name="ebas_secondary_standard_id" value="Manufacturer Apel-Riemer; Batch RR02815; Manufacturer Restek; Batch ST0000234655" />
    <attribute name="ebas_inlet_type" value="Downward-facing tube" />
    <attribute name="ebas_inlet_description" value="5m inlet from window inside a rural house in the location. 1/8 PFA line heated and insulated" />
    <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_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="measurement below blank average, but anyhow below detection limit" />
    <attribute name="ebas_organization" value="ES05L, Institute of Environmental Assessment and Water Research, IDAEA-CSIC, , Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <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;Yañez-Serrano, Ana Maria, ana.yanez@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Querol, Xavier, , , , , , , , , &quot;, &quot;Seco, Roger, roger.seco@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Alastuey, Andres, , , , , , , , , &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 acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="mass_59_organic_compounds correspond to the compounds with the mass_H+ 59.049, mass_71_prganic_compounds to the compounds with the mass_H+ 71.049 and mass_121_organic_compounds to the compounds with the mass_H+ 121.101. Methanal data have to be considered with caution." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/monoterpenesamountfraction" />
    <attribute name="actris_variable_preferred_term" value="monoterpenes 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" />
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    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/protontransfermassspectrometer" />
    <attribute name="actris_instrument_type_preferred_term" value="proton transfer mass spectrometer" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="1" />
  </variable>
  <variable name="qc_monoterpenes_ExpUnc2s" shape="qc_monoterpenes_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_monoterpenes_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_styrene_pmol_per_mol_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_styrene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="qc_styrene_pmol_per_mol_amean meta_styrene_pmol_per_mol_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2026-09-18T18:56:01.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="first revision, manually inspected -- Processing lev1-lev2: process_lev1_lev2_general V.1.02.00" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="ES0019U" />
    <attribute name="ebas_platform_code" value="ES0019S" />
    <attribute name="ebas_station_name" value="Barcelona (Palau Reial)" />
    <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="41.387463" />
    <attribute name="ebas_station_longitude" type="double" value="2.11532" />
    <attribute name="ebas_station_altitude" value="80.0 m" />
    <attribute name="ebas_measurement_height" value="3.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="styrene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="ES05L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="PTR_ToF_MS_PR" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="PTR-TOF 4000" />
    <attribute name="ebas_method_ref" value="ES05L_PTR_ToF_MS_PR_IMP2024" />
    <attribute name="ebas_calibration_scale" value="Restek" />
    <attribute name="ebas_calibration_standard_id" value="D961410" />
    <attribute name="ebas_secondary_standard_id" value="Manufacturer Apel-Riemer; Batch RR02815; Manufacturer Restek; Batch ST0000234655" />
    <attribute name="ebas_inlet_type" value="Downward-facing tube" />
    <attribute name="ebas_inlet_description" value="5m inlet from window inside a rural house in the location. 1/8 PFA line heated and insulated" />
    <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_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="measurement below blank average, but anyhow below detection limit" />
    <attribute name="ebas_organization" value="ES05L, Institute of Environmental Assessment and Water Research, IDAEA-CSIC, , Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <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;Yañez-Serrano, Ana Maria, ana.yanez@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Querol, Xavier, , , , , , , , , &quot;, &quot;Seco, Roger, roger.seco@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Alastuey, Andres, , , , , , , , , &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 acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="mass_59_organic_compounds correspond to the compounds with the mass_H+ 59.049, mass_71_prganic_compounds to the compounds with the mass_H+ 71.049 and mass_121_organic_compounds to the compounds with the mass_H+ 121.101. Methanal data have to be considered with caution. -- Data converted on import into EBAS from 'pmol/mol' to 'ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.004646745. Detection limit converted from '1.0 pmol/mol' to '0.0046467 ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.004646745. -- Data converted on export from EBAS from 'ug/m3' at 273.15 K, 1013.25 hPa to 'pmol/mol', conversion factor 215.204395. Detection limit converted from '0.0046467 ug/m3' at 273.15 K, 1013.25 hPa to '1.0 pmol/mol', conversion factor 215.204395." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/styreneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="styrene 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/protontransfermassspectrometer" />
    <attribute name="actris_instrument_type_preferred_term" value="proton transfer mass spectrometer" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="1" />
  </variable>
  <variable name="qc_styrene_pmol_per_mol_amean" shape="qc_styrene_pmol_per_mol_amean_flags time" type="int">
    <attribute name="units" value="1" />
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
  </variable>
  <variable name="meta_styrene_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_styrene_ug_per_m3_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_styrene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="qc_styrene_ug_per_m3_amean meta_styrene_ug_per_m3_amean" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2026-09-18T18:56:01.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="first revision, manually inspected -- Processing lev1-lev2: process_lev1_lev2_general V.1.02.00" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="ES0019U" />
    <attribute name="ebas_platform_code" value="ES0019S" />
    <attribute name="ebas_station_name" value="Barcelona (Palau Reial)" />
    <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="41.387463" />
    <attribute name="ebas_station_longitude" type="double" value="2.11532" />
    <attribute name="ebas_station_altitude" value="80.0 m" />
    <attribute name="ebas_measurement_height" value="3.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="styrene" />
    <attribute name="ebas_unit" value="ug/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="ES05L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="PTR_ToF_MS_PR" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="PTR-TOF 4000" />
    <attribute name="ebas_method_ref" value="ES05L_PTR_ToF_MS_PR_IMP2024" />
    <attribute name="ebas_calibration_scale" value="Restek" />
    <attribute name="ebas_calibration_standard_id" value="D961410" />
    <attribute name="ebas_secondary_standard_id" value="Manufacturer Apel-Riemer; Batch RR02815; Manufacturer Restek; Batch ST0000234655" />
    <attribute name="ebas_inlet_type" value="Downward-facing tube" />
    <attribute name="ebas_inlet_description" value="5m inlet from window inside a rural house in the location. 1/8 PFA line heated and insulated" />
    <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="0.0046467 ug/m3" />
    <attribute name="ebas_detection_limit_expl" value="Detection limit equals 3 times the precision" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="measurement below blank average, but anyhow below detection limit" />
    <attribute name="ebas_organization" value="ES05L, Institute of Environmental Assessment and Water Research, IDAEA-CSIC, , Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <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;Yañez-Serrano, Ana Maria, ana.yanez@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Querol, Xavier, , , , , , , , , &quot;, &quot;Seco, Roger, roger.seco@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Alastuey, Andres, , , , , , , , , &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 acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="mass_59_organic_compounds correspond to the compounds with the mass_H+ 59.049, mass_71_prganic_compounds to the compounds with the mass_H+ 71.049 and mass_121_organic_compounds to the compounds with the mass_H+ 121.101. Methanal data have to be considered with caution. -- Data converted on import into EBAS from 'pmol/mol' to 'ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.004646745. Detection limit converted from '1.0 pmol/mol' to '0.0046467 ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.004646745." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/styrenemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="styrene 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="proton transfer mass spectrometer" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="1" />
  </variable>
  <variable name="qc_styrene_ug_per_m3_amean" shape="qc_styrene_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_styrene_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_styrene_pmol_per_mol_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_styrene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="qc_styrene_pmol_per_mol_ExpUnc2s meta_styrene_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="2026-09-18T18:56:01.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="first revision, manually inspected -- Processing lev1-lev2: process_lev1_lev2_general V.1.02.00" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="ES0019U" />
    <attribute name="ebas_platform_code" value="ES0019S" />
    <attribute name="ebas_station_name" value="Barcelona (Palau Reial)" />
    <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="41.387463" />
    <attribute name="ebas_station_longitude" type="double" value="2.11532" />
    <attribute name="ebas_station_altitude" value="80.0 m" />
    <attribute name="ebas_measurement_height" value="3.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="styrene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="ES05L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="PTR_ToF_MS_PR" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="PTR-TOF 4000" />
    <attribute name="ebas_method_ref" value="ES05L_PTR_ToF_MS_PR_IMP2024" />
    <attribute name="ebas_calibration_scale" value="Restek" />
    <attribute name="ebas_calibration_standard_id" value="D961410" />
    <attribute name="ebas_secondary_standard_id" value="Manufacturer Apel-Riemer; Batch RR02815; Manufacturer Restek; Batch ST0000234655" />
    <attribute name="ebas_inlet_type" value="Downward-facing tube" />
    <attribute name="ebas_inlet_description" value="5m inlet from window inside a rural house in the location. 1/8 PFA line heated and insulated" />
    <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_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="measurement below blank average, but anyhow below detection limit" />
    <attribute name="ebas_organization" value="ES05L, Institute of Environmental Assessment and Water Research, IDAEA-CSIC, , Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <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;Yañez-Serrano, Ana Maria, ana.yanez@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Querol, Xavier, , , , , , , , , &quot;, &quot;Seco, Roger, roger.seco@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Alastuey, Andres, , , , , , , , , &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 acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="mass_59_organic_compounds correspond to the compounds with the mass_H+ 59.049, mass_71_prganic_compounds to the compounds with the mass_H+ 71.049 and mass_121_organic_compounds to the compounds with the mass_H+ 121.101. Methanal data have to be considered with caution. -- Data converted on import into EBAS from 'pmol/mol' to 'ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.004646745. Detection limit converted from '1.0 pmol/mol' to '0.0046467 ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.004646745. -- Data converted on export from EBAS from 'ug/m3' at 273.15 K, 1013.25 hPa to 'pmol/mol', conversion factor 215.204395. Detection limit converted from '0.0046467 ug/m3' at 273.15 K, 1013.25 hPa to '1.0 pmol/mol', conversion factor 215.204395." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/styreneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="styrene amount fraction" />
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    <attribute name="units" value="1" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_styrene_ug_per_m3_ExpUnc2s" shape="time" type="double">
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    <attribute name="standard_name" value="mass_concentration_of_styrene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="qc_styrene_ug_per_m3_ExpUnc2s meta_styrene_ug_per_m3_ExpUnc2s" />
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    <attribute name="ebas_revision_date" value="2026-09-18T18:56:01.000000Z" />
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    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="ES0019U" />
    <attribute name="ebas_platform_code" value="ES0019S" />
    <attribute name="ebas_station_name" value="Barcelona (Palau Reial)" />
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    <attribute name="ebas_station_setting" value="Urban and center city" />
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    <attribute name="ebas_station_altitude" value="80.0 m" />
    <attribute name="ebas_measurement_height" value="3.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="styrene" />
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    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="ES05L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="PTR_ToF_MS_PR" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="PTR-TOF 4000" />
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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_organization" value="ES05L, Institute of Environmental Assessment and Water Research, IDAEA-CSIC, , Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <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;Yañez-Serrano, Ana Maria, ana.yanez@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Querol, Xavier, , , , , , , , , &quot;, &quot;Seco, Roger, roger.seco@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Alastuey, Andres, , , , , , , , , &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 acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="mass_59_organic_compounds correspond to the compounds with the mass_H+ 59.049, mass_71_prganic_compounds to the compounds with the mass_H+ 71.049 and mass_121_organic_compounds to the compounds with the mass_H+ 121.101. Methanal data have to be considered with caution. -- Data converted on import into EBAS from 'pmol/mol' to 'ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.004646745. Detection limit converted from '1.0 pmol/mol' to '0.0046467 ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.004646745." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/styrenemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="styrene mass concentration" />
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    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="1" />
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  <variable name="qc_styrene_ug_per_m3_ExpUnc2s" shape="qc_styrene_ug_per_m3_ExpUnc2s_flags time" type="int">
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    <attribute name="units" value="1" />
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  <variable name="meta_styrene_ug_per_m3_ExpUnc2s" 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="" />
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    <attribute name="ebas_version_description" value="first revision, manually inspected -- Processing lev1-lev2: process_lev1_lev2_general V.1.02.00" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="ES0019U" />
    <attribute name="ebas_platform_code" value="ES0019S" />
    <attribute name="ebas_station_name" value="Barcelona (Palau Reial)" />
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    <attribute name="ebas_station_latitude" type="double" value="41.387463" />
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    <attribute name="ebas_measurement_height" value="3.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="toluene" />
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    <attribute name="ebas_laboratory_code" value="ES05L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="PTR_ToF_MS_PR" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
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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_framework_acronym" value="CAMPAIGN" />
    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
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    <attribute name="ebas_originator" value="&quot;Yañez-Serrano, Ana Maria, ana.yanez@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Querol, Xavier, , , , , , , , , &quot;, &quot;Seco, Roger, roger.seco@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Alastuey, Andres, , , , , , , , , &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 acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="mass_59_organic_compounds correspond to the compounds with the mass_H+ 59.049, mass_71_prganic_compounds to the compounds with the mass_H+ 71.049 and mass_121_organic_compounds to the compounds with the mass_H+ 121.101. Methanal data have to be considered with caution. -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 4.1109. Detection limit converted from '4.0 pmol/mol' to '16.44 ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 4.1109." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/toluenemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="toluene mass concentration" />
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  <variable name="qc_toluene_ng_per_m3_amean" shape="qc_toluene_ng_per_m3_amean_flags time" type="int">
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    <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" />
    <attribute name="standard_name" value="mole_fraction_of_toluene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
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    <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="" />
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    <attribute name="ebas_version_description" value="first revision, manually inspected -- Processing lev1-lev2: process_lev1_lev2_general V.1.02.00" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="ES0019U" />
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    <attribute name="ebas_station_latitude" type="double" value="41.387463" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="toluene" />
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    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="PTR_ToF_MS_PR" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="PTR-TOF 4000" />
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    <attribute name="ebas_organization" value="ES05L, Institute of Environmental Assessment and Water Research, IDAEA-CSIC, , Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <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;Yañez-Serrano, Ana Maria, ana.yanez@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Querol, Xavier, , , , , , , , , &quot;, &quot;Seco, Roger, roger.seco@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Alastuey, Andres, , , , , , , , , &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 acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="mass_59_organic_compounds correspond to the compounds with the mass_H+ 59.049, mass_71_prganic_compounds to the compounds with the mass_H+ 71.049 and mass_121_organic_compounds to the compounds with the mass_H+ 121.101. Methanal data have to be considered with caution." />
    <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_temporal_resolution" value="PT1H" />
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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" />
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    <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="2026-09-18T18:56:01.000000Z" />
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    <attribute name="ebas_sample_duration" value="1h" />
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    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
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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 acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="mass_59_organic_compounds correspond to the compounds with the mass_H+ 59.049, mass_71_prganic_compounds to the compounds with the mass_H+ 71.049 and mass_121_organic_compounds to the compounds with the mass_H+ 121.101. Methanal data have to be considered with caution. -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 4.1109. Detection limit converted from '4.0 pmol/mol' to '16.44 ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 4.1109." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/toluenemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="toluene mass concentration" />
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    <attribute name="actris_access_restriction" type="long" value="1" />
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  <variable name="qc_toluene_ng_per_m3_ExpUnc2s" shape="qc_toluene_ng_per_m3_ExpUnc2s_flags time" type="int">
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    <attribute name="standard_name" value="status_flag" />
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  <variable name="meta_toluene_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_toluene_pmol_per_mol_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="pmol/mol" />
    <attribute name="ancillary_variables" value="qc_toluene_pmol_per_mol_ExpUnc2s meta_toluene_pmol_per_mol_ExpUnc2s" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
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    <attribute name="ebas_component" value="toluene" />
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    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="PTR_ToF_MS_PR" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="PTR-TOF 4000" />
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    <attribute name="ebas_calibration_standard_id" value="D961410" />
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    <attribute name="ebas_inlet_type" value="Downward-facing tube" />
    <attribute name="ebas_inlet_description" value="5m inlet from window inside a rural house in the location. 1/8 PFA line heated and insulated" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="measurement below blank average, but anyhow below detection limit" />
    <attribute name="ebas_organization" value="ES05L, Institute of Environmental Assessment and Water Research, IDAEA-CSIC, , Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <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;Yañez-Serrano, Ana Maria, ana.yanez@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Querol, Xavier, , , , , , , , , &quot;, &quot;Seco, Roger, roger.seco@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;, &quot;Alastuey, Andres, , , , , , , , , &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 acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="mass_59_organic_compounds correspond to the compounds with the mass_H+ 59.049, mass_71_prganic_compounds to the compounds with the mass_H+ 71.049 and mass_121_organic_compounds to the compounds with the mass_H+ 121.101. Methanal data have to be considered with caution." />
    <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_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="1" />
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  <variable name="qc_toluene_pmol_per_mol_ExpUnc2s" shape="qc_toluene_pmol_per_mol_ExpUnc2s_flags time" type="int">
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  </variable>
  <variable name="meta_toluene_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="time" shape="time" type="double">
    <attribute name="long_name" value="time of measurement" />
    <attribute name="standard_name" value="time" />
    <attribute name="units" value="days since 1900-01-01T00:00:00Z" />
    <attribute name="axis" value="T" />
    <attribute name="calendar" value="standard" />
    <attribute name="bounds" value="time_bnds" />
    <attribute name="_CoordinateAxisType" value="Time" />
  </variable>
  <variable name="metadata_time" shape="metadata_time" type="double">
    <attribute name="long_name" value="time of ebas metadata intervals" />
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    <attribute name="units" value="days since 1900-01-01T00:00:00Z" />
    <attribute name="axis" value="T" />
    <attribute name="calendar" value="standard" />
    <attribute name="bounds" value="metadata_time_bnds" />
    <attribute name="_CoordinateAxisType" value="Time" />
  </variable>
</netcdf>
