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  <attribute name="title" value="10-2-FTOH, 6-2-FTOH, 8-2-FTOH, HFA_hydrate, N-Et-FOSA, N-Et-FOSE, N-Me-FOSA, N-Me-FOSE, PFTriDA and PFAS (per- and polyfluoroalkyl substances) at Alert" />
  <attribute name="summary" value="10-2-FTOH, 6-2-FTOH, 8-2-FTOH, HFA_hydrate, N-Et-FOSA, N-Et-FOSE, N-Me-FOSA, N-Me-FOSE, PFTriDA and PFAS (per- and polyfluoroalkyl substances) at Alert. These measurements are gathered as a part of the following projects AMAP_public and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: ['10-2-FTOH in air+aerosol', '6-2-FTOH in air+aerosol', '8-2-FTOH in air+aerosol', 'HFA_hydrate in air+aerosol', 'HFIP in air+aerosol', 'N-Et-FOSA in air+aerosol', 'N-Et-FOSE in air+aerosol', 'N-Me-FOSA in air+aerosol', 'N-Me-FOSE in air+aerosol', 'PFBA in air+aerosol (mass_concentration_of_pentafluorobenzoic_acid_in_aerosol)', 'PFBS in air+aerosol (mass_concentration_of_perfluorobutanesulfonic_acid_in_aerosol)', 'PFDA in air+aerosol', 'PFDS in air+aerosol', 'PFDoDA in air+aerosol (mass_concentration_of_perfluorododecanoic_acid_in_aerosol)', 'PFHpA in air+aerosol (mass_concentration_of_perfluoroheptanoic_acid_in_aerosol)', 'PFHxA in air+aerosol (mass_concentration_of_perfluorohexanoic_acid_in_aerosol)', 'PFHxDA in air+aerosol', 'PFHxS in air+aerosol (mass_concentration_of_perfluorohexane_sulfonic_acid_in_aerosol)', 'PFNA in air+aerosol (mass_concentration_of_perfluorononanoic_acid_in_aerosol)', 'PFOA in air+aerosol (mass_concentration_of_perfluorooctanoic_acid_in_aerosol)', 'PFODA in air+aerosol', 'PFOS in air+aerosol (mass_concentration_of_perfluorooctane_sulfonic_acid_in_aerosol)', 'PFOSA in air+aerosol (mass_concentration_of_perfluorooctan_sulphonamide_in_aerosol)', 'PFPeA in air+aerosol', 'PFPrA in air+aerosol', 'PFTeDA in air+aerosol', 'PFTriDA in air+aerosol', 'PFUnA in air+aerosol (mass_concentration_of_perfluoroundecanoic_acid_in_aerosol)', 'TFA in air+aerosol']" />
  <attribute name="keywords" value="Alert CA0420G 10-2-FTOH 6-2-FTOH 8-2-FTOH HFA_hydrate HFIP N-Et-FOSA N-Et-FOSE N-Me-FOSA N-Me-FOSE PFBA PFBS PFDA PFDS PFDoDA PFHpA PFHxA PFHxDA PFHxS PFNA PFOA PFODA PFOS PFOSA PFPeA PFPrA PFTeDA PFTriDA PFUnA TFA air+aerosol AMAP_public mass_concentration_of_pentafluorobenzoic_acid_in_aerosol mass_concentration_of_perfluorobutanesulfonic_acid_in_aerosol mass_concentration_of_perfluorododecanoic_acid_in_aerosol mass_concentration_of_perfluoroheptanoic_acid_in_aerosol mass_concentration_of_perfluorohexanoic_acid_in_aerosol mass_concentration_of_perfluorohexane_sulfonic_acid_in_aerosol mass_concentration_of_perfluorononanoic_acid_in_aerosol mass_concentration_of_perfluorooctanoic_acid_in_aerosol mass_concentration_of_perfluorooctane_sulfonic_acid_in_aerosol mass_concentration_of_perfluorooctan_sulphonamide_in_aerosol mass_concentration_of_perfluoroundecanoic_acid_in_aerosol" />
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  <attribute name="naming_authority" value="EBAS" />
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  <attribute name="acknowledgement" value="" />
  <attribute name="doi" value="https://doi.org/10.48597/VC5V-U6J6" />
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  <attribute name="citation" value="Hung, H., AMAP_public, 2026, 10-2-FTOH, 6-2-FTOH, 8-2-FTOH, HFA_hydrate, N-Et-FOSA, N-Et-FOSE, N-Me-FOSA, N-Me-FOSE, PFTriDA and PFAS (per- and polyfluoroalkyl substances) at Alert, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/VC5V-U6J6" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="CA01L &quot;Environment Canada&quot; EC/AES &quot;Atmospheric Environmental Service&quot; &quot;4905 Dufferin Street&quot; &quot;M3H 5T4&quot; &quot;Downsview, Ontario&quot; Canada" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2026-01-21T13:53:36.153551Z" />
  <attribute name="date_metadata_modified" value="2026-01-20T10:14:42Z" />
  <attribute name="creator_name" value="Hayley Hung" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value="" />
  <attribute name="creator_institution" value="" />
  <attribute name="contributor_name" value="Hayley Hung" />
  <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/" />
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  <attribute name="geospatial_vertical_positive" value="up" />
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  <attribute name="time_coverage_start" value="2014-01-06T20:33:00Z" />
  <attribute name="time_coverage_end" value="2023-01-02T16:35:00Z" />
  <attribute name="time_coverage_duration" value="P0008-11-26T20:02:00" />
  <attribute name="time_coverage_resolution" value="P0000-00-14T00:00:00" />
  <attribute name="timezone" value="UTC" />
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  <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="ebas_citation" value="Hung, H., AMAP_public, 2026, 10-2-FTOH, 6-2-FTOH, 8-2-FTOH, HFA_hydrate, N-Et-FOSA, N-Et-FOSE, N-Me-FOSA, N-Me-FOSE, PFTriDA and PFAS (per- and polyfluoroalkyl substances) at Alert, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/VC5V-U6J6" />
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  <attribute name="ebas_period_code" value="9y" />
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  <attribute name="ebas_station_state_province" value="NU" />
  <attribute name="ebas_station_land_use" value="Military reservation" />
  <attribute name="ebas_station_setting" value="Polar" />
  <attribute name="ebas_station_gaw_type" value="G" />
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  <attribute name="ebas_station_longitude" type="double" value="-62.3415260315" />
  <attribute name="ebas_station_altitude" value="210.0 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_unit" value="pg/m3" />
  <attribute name="ebas_matrix" value="air+aerosol" />
  <attribute name="ebas_laboratory_code" value="CA01L" />
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  <attribute name="ebas_instrument_name" value="HVPS1" />
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  <attribute name="ebas_filter_description" value="Whatman GF/C" />
  <attribute name="ebas_medium" value="Glass fiber+PUF+XAD+PUF" />
  <attribute name="ebas_blank_correction" value="Not blank corrected" />
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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" />
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  <attribute name="ebas_comment" value="Analyzed in-house by Organic Analysis Laboratory" />
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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" />
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  <dimension name="time" length="187" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="9" />
  <dimension name="qc_10_2_FTOH_flags" length="1" />
  <dimension name="qc_6_2_FTOH_flags" length="1" />
  <dimension name="qc_8_2_FTOH_flags" length="1" />
  <dimension name="qc_HFA_hydrate_flags" length="1" />
  <dimension name="qc_HFIP_flags" length="1" />
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  <dimension name="qc_N_Et_FOSE_flags" length="1" />
  <dimension name="qc_N_Me_FOSA_flags" length="1" />
  <dimension name="qc_N_Me_FOSE_flags" length="1" />
  <dimension name="qc_PFBA_flags" length="1" />
  <dimension name="qc_PFBS_flags" length="1" />
  <dimension name="qc_PFDA_flags" length="1" />
  <dimension name="qc_PFDS_flags" length="1" />
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  <dimension name="qc_PFHxA_flags" length="1" />
  <dimension name="qc_PFHxDA_flags" length="1" />
  <dimension name="qc_PFHxS_flags" length="1" />
  <dimension name="qc_PFNA_flags" length="1" />
  <dimension name="qc_PFOA_flags" length="1" />
  <dimension name="qc_PFODA_flags" length="1" />
  <dimension name="qc_PFOS_flags" length="1" />
  <dimension name="qc_PFOSA_flags" length="1" />
  <dimension name="qc_PFPeA_flags" length="1" />
  <dimension name="qc_PFPrA_flags" length="1" />
  <dimension name="qc_PFTeDA_flags" length="1" />
  <dimension name="qc_PFTriDA_flags" length="1" />
  <dimension name="qc_PFUnA_flags" length="1" />
  <dimension name="qc_TFA_flags" length="1" />
  <group name="CFMetadata">
    <attribute name="time_coverage_start" value="2014-01-10T06:21:30Z" />
    <attribute name="time_coverage_end" value="2022-12-30T05:09:00Z" />
    <attribute name="time_coverage_units" value="seconds" />
    <attribute name="time_coverage_resolution" value="1521731.0" />
    <attribute name="time_coverage_duration" value="P0Y0M3275DT22H47M30.000S" />
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  <group name="NCISOMetadata">
    <attribute name="metadata_creation" value="2026-05-17" />
    <attribute name="nciso_version" value="2.4.8" />
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    <attribute name="long_name" value="time bounds for measurement" />
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    <attribute name="long_name" value="time bounds for ebas metadata intervals" />
  </variable>
  <variable name="v_10_2_FTOH" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pg/m3" />
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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" />
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    <attribute name="ebas_station_altitude" value="210.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="6-2-FTOH" />
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    <attribute name="ebas_matrix" value="air+aerosol" />
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    <attribute name="ebas_blank_correction" value="Not blank corrected" />
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    <attribute name="ebas_framework_name" value="" />
    <attribute name="ebas_framework_description" value="" />
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