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  <attribute name="Conventions" value="CF-1.8, ACDD-1.3" />
  <attribute name="featureType" value="timeSeries" />
  <attribute name="title" value="PAHs (polycyclic aromatic hydrocarbons) at Birkenes II" />
  <attribute name="summary" value="PAHs (polycyclic aromatic hydrocarbons) at Birkenes II. These measurements are gathered as a part of the following projects CAMP, EMEP, NILU and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: ['1-methylnaphthalene in air+pm10', '1-methylphenanthrene in air+pm10', '2-methylanthracene in air+pm10', '2-methylnaphthalene in air+pm10', '2-methylphenanthrene in air+pm10', '3-methylphenanthrene in air+pm10', '9-methylphenanthrene in air+pm10', 'acenaphthene in air+pm10 (mass_concentration_of_acenaphthene_in_pm10_aerosols)', 'acenaphthylene in air+pm10 (mass_concentration_of_acenaphthylene_)', 'anthanthrene in air+pm10', 'anthracene in air+pm10 (mass_concentration_of_anthracene_)', 'benz_a_anthracene in air+pm10 (mass_concentration_of_benz_a_anthracene_)', 'benzo_a_fluoranthene in air+pm10', 'benzo_a_fluorene in air+pm10', 'benzo_a_pyrene in air+pm10 (mass_concentration_of_benzo_a_pyrene_)', 'benzo_b_fluoranthene in air+pm10 (mass_concentration_of_benzo_b_fluoranthene_)', 'benzo_b_fluorene in air+pm10', 'benzo_e_pyrene in air+pm10', 'benzo_ghi_fluoranthene in air+pm10', 'benzo_ghi_perylene in air+pm10 (mass_concentration_of_benzo_ghi_perylene_)', 'benzo_j_fluoranthene in air+pm10', 'benzo_k_fluoranthene in air+pm10 (mass_concentration_of_benzo_k_fluoranthene_)', 'biphenyl in air+pm10', 'chrysene in air+pm10', 'coronene in air+pm10', 'cyclopenta_cd_pyrene in air+pm10', 'dibenzo_ac_anthracene in air+pm10', 'dibenzo_ae_pyrene in air+pm10', 'dibenzo_ah_anthracene in air+pm10 (mass_concentration_of_dibenzo_ah_anthracene_)', 'dibenzo_ah_pyrene in air+pm10', 'dibenzo_ai_pyrene in air+pm10', 'dibenzofuran in air+pm10', 'dibenzothiophene in air+pm10', 'fluoranthene in air+pm10 (mass_concentration_of_fluoranthene_)', 'fluorene in air+pm10 (mass_concentration_of_fluorene_)', 'inden_123cd_pyrene in air+pm10 (mass_concentration_of_inden_123cd_pyrene_)', 'naphthalene in air+pm10 (mass_concentration_of_naphthalene_)', 'perylene in air+pm10', 'phenanthrene in air+pm10 (mass_concentration_of_phenanthrene_)', 'pyrene in air+pm10 (mass_concentration_of_pyrene_)', 'retene in air+pm10', 'triphenylene in air+pm10']" />
  <attribute name="keywords" value="&quot;Birkenes II&quot; NO0002R 1-methylnaphthalene 1-methylphenanthrene 2-methylanthracene 2-methylnaphthalene 2-methylphenanthrene 3-methylphenanthrene 9-methylphenanthrene acenaphthene acenaphthylene anthanthrene anthracene benz_a_anthracene benzo_a_fluoranthene benzo_a_fluorene benzo_a_pyrene benzo_b_fluoranthene benzo_b_fluorene benzo_e_pyrene benzo_ghi_fluoranthene benzo_ghi_perylene benzo_j_fluoranthene benzo_k_fluoranthene biphenyl chrysene coronene cyclopenta_cd_pyrene dibenzo_ac_anthracene dibenzo_ae_pyrene dibenzo_ah_anthracene dibenzo_ah_pyrene dibenzo_ai_pyrene dibenzofuran dibenzothiophene fluoranthene fluorene inden_123cd_pyrene naphthalene perylene phenanthrene pyrene retene triphenylene air+pm10 CAMP EMEP NILU mass_concentration_of_acenaphthene_in_pm10_aerosols mass_concentration_of_acenaphthylene_ mass_concentration_of_anthracene_ mass_concentration_of_benz_a_anthracene_ mass_concentration_of_benzo_a_pyrene_ mass_concentration_of_benzo_b_fluoranthene_ mass_concentration_of_benzo_ghi_perylene_ mass_concentration_of_benzo_k_fluoranthene_ mass_concentration_of_dibenzo_ah_anthracene_ mass_concentration_of_fluoranthene_ mass_concentration_of_fluorene_ mass_concentration_of_inden_123cd_pyrene_ mass_concentration_of_naphthalene_ mass_concentration_of_phenanthrene_ mass_concentration_of_pyrene_" />
  <attribute name="id" value="CPAC-CV3D.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="CAMP, EMEP, NILU" />
  <attribute name="acknowledgement" value="" />
  <attribute name="doi" value="https://doi.org/10.48597/CPAC-CV3D" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Halvorsen, H., Nizzetto, P., CAMP, EMEP, NILU, 2026, PAHs (polycyclic aromatic hydrocarbons) at Birkenes II, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/CPAC-CV3D" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="NO01L &quot;Norwegian Institute for Air Research&quot; NILU &quot;Instituttveien 18&quot; 2007 Kjeller Norway" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2026-06-18T12:32:02.010864Z" />
  <attribute name="date_metadata_modified" value="2026-06-18T00:00:00Z" />
  <attribute name="creator_name" value="Helene Lunder Halvorsen, Pernilla Bohlin Nizzetto" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value="hlu@nilu.no, pbn@nilu.no" />
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  <attribute name="contributor_name" value="Helene Lunder Halvorsen, Anne Hjellbrekke" />
  <attribute name="contributor_role" value="data submitter, 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 (8.252 58.38853 219)" />
  <attribute name="geospatial_lat_min" type="double" value="58.38853" />
  <attribute name="geospatial_lat_max" type="double" value="58.38853" />
  <attribute name="geospatial_lon_min" type="double" value="8.252" />
  <attribute name="geospatial_lon_max" type="double" value="8.252" />
  <attribute name="geospatial_vertical_min" type="double" value="219.0" />
  <attribute name="geospatial_vertical_max" type="double" value="219.0" />
  <attribute name="geospatial_vertical_positive" value="up" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
  <attribute name="time_coverage_start" value="2024-12-31T05:45:00Z" />
  <attribute name="time_coverage_end" value="2025-12-24T05:02:00Z" />
  <attribute name="time_coverage_duration" value="P0000-11-23T23:17:00" />
  <attribute name="time_coverage_resolution" value="P0000-00-07T00:00:00" />
  <attribute name="timezone" value="UTC" />
  <attribute name="ebas_data_definition" value="EBAS_1.1" />
  <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="ebas_citation" value="Halvorsen, H., Nizzetto, P., CAMP, EMEP, NILU, 2026, PAHs (polycyclic aromatic hydrocarbons) at Birkenes II, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/CPAC-CV3D" />
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  <attribute name="ebas_timezone" value="UTC" />
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  <attribute name="ebas_contains_doi" value="https://doi.org/10.48597/CPAC-CV3D" />
  <attribute name="ebas_file_creation" value="2026-06-18T12:36:13.131457Z" />
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  <attribute name="ebas_startdate" value="2024-12-31T05:45:00.000000Z" />
  <attribute name="ebas_revision_date" value="2026-06-18T00:00:00.000000Z" />
  <attribute name="ebas_statistics" value="arithmetic mean" />
  <attribute name="ebas_data_level" value="2" />
  <attribute name="ebas_period_code" value="51w" />
  <attribute name="ebas_resolution_code" value="1w" />
  <attribute name="ebas_station_code" value="NO0002R" />
  <attribute name="ebas_platform_code" value="NO0002S" />
  <attribute name="ebas_station_name" value="Birkenes II" />
  <attribute name="ebas_station_wdca_id" value="GAWANO__BIR" />
  <attribute name="ebas_station_gaw_id" value="BIR" />
  <attribute name="ebas_station_gaw_name" value="Birkenes Atmospheric Observatory" />
  <attribute name="ebas_station_other_ids" value="BIR (ICOS), Birkenes (AERONET), 201(NILUDB)" />
  <attribute name="ebas_station_land_use" value="Forest" />
  <attribute name="ebas_station_setting" value="Rural" />
  <attribute name="ebas_station_gaw_type" value="R" />
  <attribute name="ebas_station_wmo_region" type="long" value="6" />
  <attribute name="ebas_station_latitude" type="double" value="58.38853" />
  <attribute name="ebas_station_longitude" type="double" value="8.252" />
  <attribute name="ebas_station_altitude" value="219.0 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_unit" value="ng/m3" />
  <attribute name="ebas_matrix" value="air+pm10" />
  <attribute name="ebas_laboratory_code" value="NO01L" />
  <attribute name="ebas_instrument_type" value="high_vol_sampler" />
  <attribute name="ebas_instrument_name" value="fppuf_02a" />
  <attribute name="ebas_instrument_manufacturer" value="Custom build - Digitel" />
  <attribute name="ebas_instrument_model" value="Modified DH-77" />
  <attribute name="ebas_analytical_laboratory_code" value="NO01L" />
  <attribute name="ebas_analytical_measurement_technique" value="GC-MS" />
  <attribute name="ebas_analytical_instrument_name" value="MSD" />
  <attribute name="ebas_analytical_instrument_manufacturer" value="Agilent+Agilent" />
  <attribute name="ebas_analytical_instrument_model" value="7890B+5977A" />
  <attribute name="ebas_method_ref" value="NO01L_NILU_O_3_pah" />
  <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014" />
  <attribute name="ebas_inlet_type" value="Impactor--direct" />
  <attribute name="ebas_inlet_description" value="PM10" />
  <attribute name="ebas_flow_rate" value="500.0 l/min" />
  <attribute name="ebas_filter_description" value="Whatman GF/C" />
  <attribute name="ebas_medium" value="Glass fiber+PUF+PUF" />
  <attribute name="ebas_sample_preparation" value="Soxhlet+Cyclohexane+13C+Silica" />
  <attribute name="ebas_blank_correction" value="Not blank corrected" />
  <attribute name="ebas_organization" value="NO01L, Norwegian Institute for Air Research, NILU, , Instituttveien 18, , 2007, Kjeller, Norway" />
  <attribute name="ebas_framework_acronym" value="CAMP, EMEP, NILU" />
  <attribute name="ebas_framework_name" value="OSPARCOM - Comprehensive Atmospheric Monitoring Programme, European Monitoring and Evaluation Programme, Norwegian Institute for Air Research" />
  <attribute name="ebas_framework_description" value="The OSPARCOM Comprehensive Atmospheric Monitoring Programme goal is the assessment of the atmospheric input of selected contaminants to the OSPAR maritime area and regions., The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems., Atmospheric measuremnts produced at NILU." />
  <attribute name="ebas_framework_contact_name" value="Wenche Aas, Kjetil Tørseth, Kjetil Tørseth" />
  <attribute name="ebas_framework_contact_email" value="waa@nilu.no, kt@nilu.no, kt@nilu.no" />
  <attribute name="ebas_originator" value="&quot;Halvorsen, Helene Lunder, hlu@nilu.no, Norwegian Institute for Air Research, NILU, Atmosph, Instituttveien 18, , 2007, Kjeller, Norway&quot;, &quot;Nizzetto, Pernilla Bohlin, pbn@nilu.no, Norwegian Institute for Air Research, NILU, Environmental Chemistry Department, Instituttveien 18, , 2007, Kjeller, Norway&quot;" />
  <attribute name="ebas_submitter" value="&quot;Halvorsen, Helene Lunder, hlu@nilu.no, Norwegian Institute for Air Research, NILU, Atmosph, Instituttveien 18, , 2007, Kjeller, Norway&quot;, &quot;Hjellbrekke, Anne, agh@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2007, Kjeller, Norway&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 frameworks: CAMP, EMEP, NILU." />
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  <attribute name="Metadata_Conventions" value="Unidata Dataset Discovery v1.0" />
  <attribute name="geospatial_lat_units" value="degrees_north" />
  <attribute name="geospatial_lon_units" value="degrees_east" />
  <attribute name="standard_name_vocabulary" value="CF-1.7, ACDD-1.3" />
  <attribute name="history" value="None" />
  <attribute name="creator_url" value="ebas.nilu.no" />
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  <dimension name="time" length="52" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="1" />
  <dimension name="qc_1_methylnaphthalene_flags" length="1" />
  <dimension name="qc_1_methylphenanthrene_flags" length="1" />
  <dimension name="qc_2_methylanthracene_flags" length="1" />
  <dimension name="qc_2_methylnaphthalene_flags" length="1" />
  <dimension name="qc_2_methylphenanthrene_flags" length="1" />
  <dimension name="qc_3_methylphenanthrene_flags" length="1" />
  <dimension name="qc_9_methylphenanthrene_flags" length="1" />
  <dimension name="qc_acenaphthene_flags" length="1" />
  <dimension name="qc_acenaphthylene_flags" length="1" />
  <dimension name="qc_anthanthrene_flags" length="1" />
  <dimension name="qc_anthracene_flags" length="1" />
  <dimension name="qc_benz_a_anthracene_flags" length="1" />
  <dimension name="qc_benzo_a_fluoranthene_flags" length="1" />
  <dimension name="qc_benzo_a_fluorene_flags" length="1" />
  <dimension name="qc_benzo_a_pyrene_flags" length="1" />
  <dimension name="qc_benzo_b_fluoranthene_flags" length="1" />
  <dimension name="qc_benzo_b_fluorene_flags" length="1" />
  <dimension name="qc_benzo_e_pyrene_flags" length="1" />
  <dimension name="qc_benzo_ghi_fluoranthene_flags" length="1" />
  <dimension name="qc_benzo_ghi_perylene_flags" length="1" />
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  <dimension name="qc_benzo_k_fluoranthene_flags" length="1" />
  <dimension name="qc_biphenyl_flags" length="1" />
  <dimension name="qc_chrysene_flags" length="1" />
  <dimension name="qc_coronene_flags" length="1" />
  <dimension name="qc_cyclopenta_cd_pyrene_flags" length="1" />
  <dimension name="qc_dibenzo_ac_anthracene_flags" length="1" />
  <dimension name="qc_dibenzo_ae_pyrene_flags" length="1" />
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  <dimension name="qc_dibenzo_ah_pyrene_flags" length="1" />
  <dimension name="qc_dibenzo_ai_pyrene_flags" length="1" />
  <dimension name="qc_dibenzofuran_flags" length="1" />
  <dimension name="qc_dibenzothiophene_flags" length="1" />
  <dimension name="qc_fluoranthene_flags" length="1" />
  <dimension name="qc_fluorene_flags" length="1" />
  <dimension name="qc_inden_123cd_pyrene_flags" length="1" />
  <dimension name="qc_naphthalene_flags" length="1" />
  <dimension name="qc_perylene_flags" length="1" />
  <dimension name="qc_phenanthrene_flags" length="1" />
  <dimension name="qc_pyrene_flags" length="1" />
  <dimension name="qc_retene_flags" length="1" />
  <dimension name="qc_triphenylene_flags" length="1" />
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    <attribute name="time_coverage_end" value="2025-12-23T17:03:59Z" />
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  </variable>
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    <attribute name="cell_methods" value="time: mean" />
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    <attribute name="ebas_platform_code" value="NO0002S" />
    <attribute name="ebas_station_name" value="Birkenes II" />
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    <attribute name="ebas_station_gaw_id" value="BIR" />
    <attribute name="ebas_station_gaw_name" value="Birkenes Atmospheric Observatory" />
    <attribute name="ebas_station_other_ids" value="BIR (ICOS), Birkenes (AERONET), 201(NILUDB)" />
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    <attribute name="ebas_station_gaw_type" value="R" />
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    <attribute name="ebas_component" value="1-methylnaphthalene" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air+pm10" />
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    <attribute name="ebas_instrument_name" value="fppuf_02a" />
    <attribute name="ebas_instrument_manufacturer" value="Custom build - Digitel" />
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    <attribute name="ebas_blank_correction" value="Not blank corrected" />
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    <attribute name="ebas_framework_description" value="The OSPARCOM Comprehensive Atmospheric Monitoring Programme goal is the assessment of the atmospheric input of selected contaminants to the OSPAR maritime area and regions., The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems., Atmospheric measuremnts produced at NILU." />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas, Kjetil Tørseth, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no, kt@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Halvorsen, Helene Lunder, hlu@nilu.no, Norwegian Institute for Air Research, NILU, Atmosph, Instituttveien 18, , 2007, Kjeller, Norway&quot;, &quot;Nizzetto, Pernilla Bohlin, pbn@nilu.no, Norwegian Institute for Air Research, NILU, Environmental Chemistry Department, Instituttveien 18, , 2007, Kjeller, Norway&quot;" />
    <attribute name="ebas_submitter" value="&quot;Halvorsen, Helene Lunder, hlu@nilu.no, Norwegian Institute for Air Research, NILU, Atmosph, Instituttveien 18, , 2007, Kjeller, Norway&quot;, &quot;Hjellbrekke, Anne, agh@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2007, Kjeller, Norway&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 frameworks: CAMP, EMEP, NILU." />
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    <attribute name="actris_variable_preferred_term" value="gas and particle acenaphthene mass concentration" />
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    <attribute name="ebas_data_level" value="2" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="acenaphthylene" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="anthanthrene" />
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    <attribute name="actris_variable_preferred_term" value="gas and particle anthracene mass concentration" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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    <attribute name="actris_variable_preferred_term" value="gas and particle benzo(a)pyrene mass concentration" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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    <attribute name="ebas_component" value="benzo_b_fluoranthene" />
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  <variable name="qc_benzo_j_fluoranthene" shape="qc_benzo_j_fluoranthene_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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    <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="mass_concentration_of_benzo_k_fluoranthene_" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="qc_benzo_k_fluoranthene meta_benzo_k_fluoranthene" />
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    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-06-18T00:00:00.000000Z" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="NO0002R" />
    <attribute name="ebas_platform_code" value="NO0002S" />
    <attribute name="ebas_station_name" value="Birkenes II" />
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    <attribute name="ebas_station_gaw_name" value="Birkenes Atmospheric Observatory" />
    <attribute name="ebas_station_other_ids" value="BIR (ICOS), Birkenes (AERONET), 201(NILUDB)" />
    <attribute name="ebas_station_land_use" value="Forest" />
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    <attribute name="ebas_station_gaw_type" value="R" />
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    <attribute name="ebas_station_latitude" type="double" value="58.38853" />
    <attribute name="ebas_station_longitude" type="double" value="8.252" />
    <attribute name="ebas_station_altitude" value="219.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="benzo_k_fluoranthene" />
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    <attribute name="ebas_matrix" value="air+pm10" />
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    <attribute name="ebas_analytical_instrument_manufacturer" value="Agilent+Agilent" />
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    <attribute name="ebas_blank_correction" value="Not blank corrected" />
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    <attribute name="ebas_framework_contact_name" value="Wenche Aas, Kjetil Tørseth, Kjetil Tørseth" />
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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 frameworks: CAMP, EMEP, NILU." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasandparticlebenzo-kfluoranthenemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="gas and particle benzo(k)fluoranthene mass concentration" />
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    <attribute name="_FillValue" type="int" value="0" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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  <variable name="v_biphenyl" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="missing_value" type="double" value="NaN" />
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    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="NO0002R" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="biphenyl" />
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    <attribute name="ebas_matrix" value="air+pm10" />
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    <attribute name="actris_variable_preferred_term" value="gas and particle biphenyl mass concentration" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
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    <attribute name="ebas_data_level" value="2" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="chrysene" />
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    <attribute name="ebas_submitter" value="&quot;Halvorsen, Helene Lunder, hlu@nilu.no, Norwegian Institute for Air Research, NILU, Atmosph, Instituttveien 18, , 2007, Kjeller, Norway&quot;, &quot;Hjellbrekke, Anne, agh@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2007, Kjeller, Norway&quot;" />
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    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasandparticlechrysenemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="gas and particle chrysene mass concentration" />
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    <attribute name="actris_matrix_preferred_term" value="gas and PM10" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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  <variable name="qc_chrysene" shape="qc_chrysene_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
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  <variable name="meta_chrysene" 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_coronene" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="qc_coronene meta_coronene" />
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    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-06-18T00:00:00.000000Z" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="NO0002R" />
    <attribute name="ebas_platform_code" value="NO0002S" />
    <attribute name="ebas_station_name" value="Birkenes II" />
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    <attribute name="units" value="1" />
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    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="NO0002R" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="dibenzofuran" />
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  <variable name="qc_fluoranthene" shape="qc_fluoranthene_flags time" type="int">
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  <variable name="meta_fluoranthene" 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_fluorene" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_fluorene_" />
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    <attribute name="ebas_station_gaw_id" value="BIR" />
    <attribute name="ebas_station_gaw_name" value="Birkenes Atmospheric Observatory" />
    <attribute name="ebas_station_other_ids" value="BIR (ICOS), Birkenes (AERONET), 201(NILUDB)" />
    <attribute name="ebas_station_land_use" value="Forest" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="58.38853" />
    <attribute name="ebas_station_longitude" type="double" value="8.252" />
    <attribute name="ebas_station_altitude" value="219.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="fluorene" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air+pm10" />
    <attribute name="ebas_laboratory_code" value="NO01L" />
    <attribute name="ebas_instrument_type" value="high_vol_sampler" />
    <attribute name="ebas_instrument_name" value="fppuf_02a" />
    <attribute name="ebas_instrument_manufacturer" value="Custom build - Digitel" />
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    <attribute name="ebas_analytical_laboratory_code" value="NO01L" />
    <attribute name="ebas_analytical_measurement_technique" value="GC-MS" />
    <attribute name="ebas_analytical_instrument_name" value="MSD" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Agilent+Agilent" />
    <attribute name="ebas_analytical_instrument_model" value="7890B+5977A" />
    <attribute name="ebas_method_ref" value="NO01L_NILU_O_3_pah" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014" />
    <attribute name="ebas_inlet_type" value="Impactor--direct" />
    <attribute name="ebas_inlet_description" value="PM10" />
    <attribute name="ebas_flow_rate" value="500.0 l/min" />
    <attribute name="ebas_filter_description" value="Whatman GF/C" />
    <attribute name="ebas_medium" value="Glass fiber+PUF+PUF" />
    <attribute name="ebas_sample_preparation" value="Soxhlet+Cyclohexane+13C+Silica" />
    <attribute name="ebas_blank_correction" value="Not blank corrected" />
    <attribute name="ebas_organization" value="NO01L, Norwegian Institute for Air Research, NILU, , Instituttveien 18, , 2007, Kjeller, Norway" />
    <attribute name="ebas_framework_acronym" value="CAMP, EMEP, NILU" />
    <attribute name="ebas_framework_name" value="OSPARCOM - Comprehensive Atmospheric Monitoring Programme, European Monitoring and Evaluation Programme, Norwegian Institute for Air Research" />
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    <attribute name="ebas_framework_contact_name" value="Wenche Aas, Kjetil Tørseth, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no, kt@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Halvorsen, Helene Lunder, hlu@nilu.no, Norwegian Institute for Air Research, NILU, Atmosph, Instituttveien 18, , 2007, Kjeller, Norway&quot;, &quot;Nizzetto, Pernilla Bohlin, pbn@nilu.no, Norwegian Institute for Air Research, NILU, Environmental Chemistry Department, Instituttveien 18, , 2007, Kjeller, Norway&quot;" />
    <attribute name="ebas_submitter" value="&quot;Halvorsen, Helene Lunder, hlu@nilu.no, Norwegian Institute for Air Research, NILU, Atmosph, Instituttveien 18, , 2007, Kjeller, Norway&quot;, &quot;Hjellbrekke, Anne, agh@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2007, Kjeller, Norway&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 frameworks: CAMP, EMEP, NILU." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasandparticlefluorenemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="gas and particle fluorene mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasandPM10" />
    <attribute name="actris_matrix_preferred_term" value="gas and PM10" />
    <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="high volume filter sampler" />
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    <attribute name="actris_temporal_resolution" value="P7D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_fluorene" shape="qc_fluorene_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_fluorene" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_inden_123cd_pyrene" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_inden_123cd_pyrene_" />
    <attribute name="missing_value" type="double" value="NaN" />
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    <attribute name="ancillary_variables" value="qc_inden_123cd_pyrene meta_inden_123cd_pyrene" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-06-18T00:00:00.000000Z" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="NO0002R" />
    <attribute name="ebas_platform_code" value="NO0002S" />
    <attribute name="ebas_station_name" value="Birkenes II" />
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    <attribute name="ebas_station_gaw_id" value="BIR" />
    <attribute name="ebas_station_gaw_name" value="Birkenes Atmospheric Observatory" />
    <attribute name="ebas_station_other_ids" value="BIR (ICOS), Birkenes (AERONET), 201(NILUDB)" />
    <attribute name="ebas_station_land_use" value="Forest" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="58.38853" />
    <attribute name="ebas_station_longitude" type="double" value="8.252" />
    <attribute name="ebas_station_altitude" value="219.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="inden_123cd_pyrene" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air+pm10" />
    <attribute name="ebas_laboratory_code" value="NO01L" />
    <attribute name="ebas_instrument_type" value="high_vol_sampler" />
    <attribute name="ebas_instrument_name" value="fppuf_02a" />
    <attribute name="ebas_instrument_manufacturer" value="Custom build - Digitel" />
    <attribute name="ebas_instrument_model" value="Modified DH-77" />
    <attribute name="ebas_analytical_laboratory_code" value="NO01L" />
    <attribute name="ebas_analytical_measurement_technique" value="GC-MS" />
    <attribute name="ebas_analytical_instrument_name" value="MSD" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Agilent+Agilent" />
    <attribute name="ebas_analytical_instrument_model" value="7890B+5977A" />
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    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014" />
    <attribute name="ebas_inlet_type" value="Impactor--direct" />
    <attribute name="ebas_inlet_description" value="PM10" />
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    <attribute name="ebas_filter_description" value="Whatman GF/C" />
    <attribute name="ebas_medium" value="Glass fiber+PUF+PUF" />
    <attribute name="ebas_sample_preparation" value="Soxhlet+Cyclohexane+13C+Silica" />
    <attribute name="ebas_blank_correction" value="Not blank corrected" />
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    <attribute name="ebas_framework_acronym" value="CAMP, EMEP, NILU" />
    <attribute name="ebas_framework_name" value="OSPARCOM - Comprehensive Atmospheric Monitoring Programme, European Monitoring and Evaluation Programme, Norwegian Institute for Air Research" />
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    <attribute name="ebas_framework_contact_name" value="Wenche Aas, Kjetil Tørseth, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no, kt@nilu.no, kt@nilu.no" />
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    <attribute name="ebas_submitter" value="&quot;Halvorsen, Helene Lunder, hlu@nilu.no, Norwegian Institute for Air Research, NILU, Atmosph, Instituttveien 18, , 2007, Kjeller, Norway&quot;, &quot;Hjellbrekke, Anne, agh@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2007, Kjeller, Norway&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 frameworks: CAMP, EMEP, NILU." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasandparticleindeno-1-2-3-cdpyrenemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="gas and particle indeno(1,2,3-cd)pyrene mass concentration" />
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    <attribute name="actris_matrix_preferred_term" value="gas and PM10" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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  <variable name="qc_inden_123cd_pyrene" shape="qc_inden_123cd_pyrene_flags time" type="int">
    <attribute name="units" value="1" />
    <attribute name="_FillValue" type="int" value="0" />
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    <attribute name="missing_value" type="int" value="0" />
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  <variable name="meta_inden_123cd_pyrene" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_naphthalene" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_naphthalene_" />
    <attribute name="missing_value" type="double" value="NaN" />
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    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-06-18T00:00:00.000000Z" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="NO0002R" />
    <attribute name="ebas_platform_code" value="NO0002S" />
    <attribute name="ebas_station_name" value="Birkenes II" />
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    <attribute name="ebas_station_gaw_name" value="Birkenes Atmospheric Observatory" />
    <attribute name="ebas_station_other_ids" value="BIR (ICOS), Birkenes (AERONET), 201(NILUDB)" />
    <attribute name="ebas_station_land_use" value="Forest" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
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    <attribute name="ebas_station_latitude" type="double" value="58.38853" />
    <attribute name="ebas_station_longitude" type="double" value="8.252" />
    <attribute name="ebas_station_altitude" value="219.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="naphthalene" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air+pm10" />
    <attribute name="ebas_laboratory_code" value="NO01L" />
    <attribute name="ebas_instrument_type" value="high_vol_sampler" />
    <attribute name="ebas_instrument_name" value="fppuf_02a" />
    <attribute name="ebas_instrument_manufacturer" value="Custom build - Digitel" />
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    <attribute name="ebas_analytical_laboratory_code" value="NO01L" />
    <attribute name="ebas_analytical_measurement_technique" value="GC-MS" />
    <attribute name="ebas_analytical_instrument_name" value="MSD" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Agilent+Agilent" />
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    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014" />
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    <attribute name="ebas_inlet_description" value="PM10" />
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    <attribute name="ebas_sample_preparation" value="Soxhlet+Cyclohexane+13C+Silica" />
    <attribute name="ebas_blank_correction" value="Not blank corrected" />
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    <attribute name="ebas_framework_name" value="OSPARCOM - Comprehensive Atmospheric Monitoring Programme, European Monitoring and Evaluation Programme, Norwegian Institute for Air Research" />
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    <attribute name="ebas_framework_contact_name" value="Wenche Aas, Kjetil Tørseth, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no, kt@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Halvorsen, Helene Lunder, hlu@nilu.no, Norwegian Institute for Air Research, NILU, Atmosph, Instituttveien 18, , 2007, Kjeller, Norway&quot;, &quot;Nizzetto, Pernilla Bohlin, pbn@nilu.no, Norwegian Institute for Air Research, NILU, Environmental Chemistry Department, Instituttveien 18, , 2007, Kjeller, Norway&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 frameworks: CAMP, EMEP, NILU." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasandparticlenaphthalenemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="gas and particle naphthalene mass concentration" />
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    <attribute name="actris_matrix_preferred_term" value="gas and PM10" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_instrument_type_preferred_term" value="high volume filter sampler" />
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  <variable name="qc_naphthalene" shape="qc_naphthalene_flags time" type="int">
    <attribute name="units" value="1" />
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  <variable name="meta_naphthalene" 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_perylene" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="qc_perylene meta_perylene" />
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    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-06-18T00:00:00.000000Z" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="NO0002R" />
    <attribute name="ebas_platform_code" value="NO0002S" />
    <attribute name="ebas_station_name" value="Birkenes II" />
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    <attribute name="ebas_station_gaw_id" value="BIR" />
    <attribute name="ebas_station_gaw_name" value="Birkenes Atmospheric Observatory" />
    <attribute name="ebas_station_other_ids" value="BIR (ICOS), Birkenes (AERONET), 201(NILUDB)" />
    <attribute name="ebas_station_land_use" value="Forest" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
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    <attribute name="ebas_station_latitude" type="double" value="58.38853" />
    <attribute name="ebas_station_longitude" type="double" value="8.252" />
    <attribute name="ebas_station_altitude" value="219.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="perylene" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air+pm10" />
    <attribute name="ebas_laboratory_code" value="NO01L" />
    <attribute name="ebas_instrument_type" value="high_vol_sampler" />
    <attribute name="ebas_instrument_name" value="fppuf_02a" />
    <attribute name="ebas_instrument_manufacturer" value="Custom build - Digitel" />
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    <attribute name="ebas_analytical_laboratory_code" value="NO01L" />
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    <attribute name="ebas_analytical_instrument_name" value="MSD" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Agilent+Agilent" />
    <attribute name="ebas_analytical_instrument_model" value="7890B+5977A" />
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    <attribute name="ebas_inlet_type" value="Impactor--direct" />
    <attribute name="ebas_inlet_description" value="PM10" />
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    <attribute name="ebas_sample_preparation" value="Soxhlet+Cyclohexane+13C+Silica" />
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    <attribute name="actris_instrument_type_preferred_term" value="high volume filter sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/CAMP, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP, https://vocabulary.actris.nilu.no/actris_controlled_lists/NILU" />
    <attribute name="actris_framework_preferred_term" value="CAMP, EMEP, NILU" />
    <attribute name="actris_temporal_resolution" value="P7D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_retene" shape="qc_retene_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_retene" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_triphenylene" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="qc_triphenylene meta_triphenylene" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-06-18T00:00:00.000000Z" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="NO0002R" />
    <attribute name="ebas_platform_code" value="NO0002S" />
    <attribute name="ebas_station_name" value="Birkenes II" />
    <attribute name="ebas_station_wdca_id" value="GAWANO__BIR" />
    <attribute name="ebas_station_gaw_id" value="BIR" />
    <attribute name="ebas_station_gaw_name" value="Birkenes Atmospheric Observatory" />
    <attribute name="ebas_station_other_ids" value="BIR (ICOS), Birkenes (AERONET), 201(NILUDB)" />
    <attribute name="ebas_station_land_use" value="Forest" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="6" />
    <attribute name="ebas_station_latitude" type="double" value="58.38853" />
    <attribute name="ebas_station_longitude" type="double" value="8.252" />
    <attribute name="ebas_station_altitude" value="219.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="triphenylene" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air+pm10" />
    <attribute name="ebas_laboratory_code" value="NO01L" />
    <attribute name="ebas_instrument_type" value="high_vol_sampler" />
    <attribute name="ebas_instrument_name" value="fppuf_02a" />
    <attribute name="ebas_instrument_manufacturer" value="Custom build - Digitel" />
    <attribute name="ebas_instrument_model" value="Modified DH-77" />
    <attribute name="ebas_analytical_laboratory_code" value="NO01L" />
    <attribute name="ebas_analytical_measurement_technique" value="GC-MS" />
    <attribute name="ebas_analytical_instrument_name" value="MSD" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Agilent+Agilent" />
    <attribute name="ebas_analytical_instrument_model" value="7890B+5977A" />
    <attribute name="ebas_method_ref" value="NO01L_NILU_O_3_pah" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014" />
    <attribute name="ebas_inlet_type" value="Impactor--direct" />
    <attribute name="ebas_inlet_description" value="PM10" />
    <attribute name="ebas_flow_rate" value="500.0 l/min" />
    <attribute name="ebas_filter_description" value="Whatman GF/C" />
    <attribute name="ebas_medium" value="Glass fiber+PUF+PUF" />
    <attribute name="ebas_sample_preparation" value="Soxhlet+Cyclohexane+13C+Silica" />
    <attribute name="ebas_blank_correction" value="Not blank corrected" />
    <attribute name="ebas_organization" value="NO01L, Norwegian Institute for Air Research, NILU, , Instituttveien 18, , 2007, Kjeller, Norway" />
    <attribute name="ebas_framework_acronym" value="CAMP, EMEP, NILU" />
    <attribute name="ebas_framework_name" value="OSPARCOM - Comprehensive Atmospheric Monitoring Programme, European Monitoring and Evaluation Programme, Norwegian Institute for Air Research" />
    <attribute name="ebas_framework_description" value="The OSPARCOM Comprehensive Atmospheric Monitoring Programme goal is the assessment of the atmospheric input of selected contaminants to the OSPAR maritime area and regions., The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems., Atmospheric measuremnts produced at NILU." />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas, Kjetil Tørseth, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no, kt@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Halvorsen, Helene Lunder, hlu@nilu.no, Norwegian Institute for Air Research, NILU, Atmosph, Instituttveien 18, , 2007, Kjeller, Norway&quot;, &quot;Nizzetto, Pernilla Bohlin, pbn@nilu.no, Norwegian Institute for Air Research, NILU, Environmental Chemistry Department, Instituttveien 18, , 2007, Kjeller, Norway&quot;" />
    <attribute name="ebas_submitter" value="&quot;Halvorsen, Helene Lunder, hlu@nilu.no, Norwegian Institute for Air Research, NILU, Atmosph, Instituttveien 18, , 2007, Kjeller, Norway&quot;, &quot;Hjellbrekke, Anne, agh@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2007, Kjeller, Norway&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 frameworks: CAMP, EMEP, NILU." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasandparticletriphenylenemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="gas and particle triphenylene mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasandPM10" />
    <attribute name="actris_matrix_preferred_term" value="gas and PM10" />
    <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/highvolumefiltersampler" />
    <attribute name="actris_instrument_type_preferred_term" value="high volume filter sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/CAMP, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP, https://vocabulary.actris.nilu.no/actris_controlled_lists/NILU" />
    <attribute name="actris_framework_preferred_term" value="CAMP, EMEP, NILU" />
    <attribute name="actris_temporal_resolution" value="P7D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_triphenylene" shape="qc_triphenylene_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_triphenylene" 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" />
    <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="metadata_time_bnds" />
    <attribute name="_CoordinateAxisType" value="Time" />
  </variable>
</netcdf>
