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<netcdf xmlns="http://www.unidata.ucar.edu/namespaces/netcdf/ncml-2.2" location="Not provided because of security concerns.">
  <attribute name="Conventions" value="CF-1.8, ACDD-1.3" />
  <attribute name="featureType" value="timeSeries" />
  <attribute name="title" value="Ground based in situ observations of filter_3pack at Villum Research Station, Station Nord (DK0010G)" />
  <attribute name="keywords" value="Villum Research Station, Station Nord, cadmium, mass_concentration_of_arsenic_in_dry_aerosol_particles_in _air, mass_concentration_of_lead_in_dry_aerosol_particles_in _air, nickel, aerosol, GAW-WDCRG, AMAP, DK0010G, CAMP, mass_concentration_of_nickel_in_dry_aerosol_particles_in _air, arsenic, lead, EMEP, mass_concentration_of_cadmium_in_dry_aerosol_particles_in _air" />
  <attribute name="id" value="6UZC-RYPP.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="AMAP, CAMP, EMEP, GAW-WDCRG" />
  <attribute name="acknowledgement" value="nobody" />
  <attribute name="doi" value="https://doi.org/10.48597/6UZC-RYPP" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Henrik Skov, Jacob Klenø Nøjgaard, Henrik Skov, Jacob Klenø Nøjgaard, Henrik Skov, Jacob Klenø Nøjgaard, Henrik Skov, Jacob Klenø Nøjgaard, Henrik Skov, Jacob Klenø Nøjgaard, arsenic, cadmium, lead, nickel - filter_3pack at Villum Research Station, Station Nord, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/6UZC-RYPP" />
  <attribute name="summary" value="Ground based in situ observations of filter_3pack at Villum Research Station, Station Nord (DK0010G). These measurements are gathered as a part of the following projects AMAP, CAMP, EMEP, GAW-WDCRG and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: arsenic in aerosol (mass_concentration_of_arsenic_in_dry_aerosol_particles_in _air), cadmium in aerosol (mass_concentration_of_cadmium_in_dry_aerosol_particles_in _air), lead in aerosol (mass_concentration_of_lead_in_dry_aerosol_particles_in _air), nickel in aerosol (mass_concentration_of_nickel_in_dry_aerosol_particles_in _air)" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="DK01L, National Environmental Research Institute, NERI, P.O.Box 358, Fredriksborgvei 399, DK-4000 Roskilde, Denmark" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2023-06-28T11:46:23 UTC" />
  <attribute name="date_metadata_modified" value="2023-06-28T11:46:23 UTC" />
  <attribute name="creator_name" value="Henrik Skov, Jacob Klenø Nøjgaard, Henrik Skov, Jacob Klenø Nøjgaard, Henrik Skov, Jacob Klenø Nøjgaard, Henrik Skov, Jacob Klenø Nøjgaard, Henrik Skov, Jacob Klenø Nøjgaard" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value="hsk@envs.au.dk, jakn@envs.au.dk, hsk@envs.au.dk, jakn@envs.au.dk, hsk@envs.au.dk, cmo@dmu.dk, hsk@envs.au.dk, jakn@envs.au.dk, hsk@envs.au.dk, jakn@envs.au.dk" />
  <attribute name="creator_institution" value="&quot;Aarhus Universitet, ENVIS, ATAIR&quot;, &quot;Aarhus Universitet, ENVIS, ATAIR&quot;, &quot;Aarhus Universitet, ENVIS, ATAIR&quot;, &quot;Aarhus Universitet, ENVIS, ATAIR&quot;, &quot;Aarhus Universitet, ENVIS, ATAIR&quot;, &quot;Aarhus Universitet, ENVIS, ATAIR&quot;, &quot;Aarhus Universitet, ENVIS, ATAIR&quot;, &quot;Aarhus Universitet, ENVIS, ATAIR&quot;, &quot;Aarhus Universitet, ENVIS, ATAIR&quot;, &quot;Aarhus Universitet, ENVIS, ATAIR&quot;" />
  <attribute name="contributor_name" value="Rune Keller, Rune Keller, Rune Keller, Rune Keller, Rune Keller" />
  <attribute name="contributor_role" value="data submitter, data submitter, data submitter, 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 (81.6 -16.67 1.0)" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
  <attribute name="geospatial_lat_min" type="double" value="81.6" />
  <attribute name="geospatial_lat_max" type="double" value="81.6" />
  <attribute name="geospatial_lon_min" type="double" value="-16.67" />
  <attribute name="geospatial_lon_max" type="double" value="-16.67" />
  <attribute name="geospatial_vertical_min" type="double" value="1.0" />
  <attribute name="geospatial_vertical_max" type="double" value="1.0" />
  <attribute name="geospatial_vertical_positive" value="up" />
  <attribute name="time_coverage_start" value="2014-01-07T04:00:00 UTC" />
  <attribute name="time_coverage_end" value="2019-01-02T04:00:00 UTC" />
  <attribute name="time_coverage_duration" value="P0004-11-26T00:00:00" />
  <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="Henrik Skov, Jacob Klenø Nøjgaard, Henrik Skov, Jacob Klenø Nøjgaard, Henrik Skov, Jacob Klenø Nøjgaard, Henrik Skov, Jacob Klenø Nøjgaard, Henrik Skov, Jacob Klenø Nøjgaard, arsenic, cadmium, lead, nickel - filter_3pack at Villum Research Station, Station Nord, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/6UZC-RYPP" />
  <attribute name="ebas_set_type_code" value="TI" />
  <attribute name="ebas_timezone" value="UTC" />
  <attribute name="ebas_file_name" value="6UZC-RYPP.nc" />
  <attribute name="ebas_represents_doi" value="https://doi.org/10.48597/6UZC-RYPP" />
  <attribute name="ebas_contains_doi" value="https://doi.org/10.48597/6UZC-RYPP" />
  <attribute name="ebas_file_creation" value="2023-12-11T16:58:42.099058 UTC" />
  <attribute name="ebas_export_state" value="2020-06-17T09:10:25.757000 UTC" />
  <attribute name="ebas_export_filter" value="exclude-900,exclude-invalid" />
  <attribute name="ebas_startdate" value="20140107040000" />
  <attribute name="ebas_revision_date" value="20230628114623" />
  <attribute name="ebas_version" value="1" />
  <attribute name="ebas_version_description" value="initial revision, manually inspected" />
  <attribute name="ebas_statistics" value="arithmetic mean" />
  <attribute name="ebas_data_level" value="2" />
  <attribute name="ebas_period_code" value="5y" />
  <attribute name="ebas_resolution_code" value="1w" />
  <attribute name="ebas_sample_duration" value="1w" />
  <attribute name="ebas_orig_time_res" value="1w" />
  <attribute name="ebas_station_code" value="DK0010G" />
  <attribute name="ebas_platform_code" value="DK0010S" />
  <attribute name="ebas_station_name" value="Villum Research Station, Station Nord" />
  <attribute name="ebas_station_latitude" value="81.6" />
  <attribute name="ebas_station_longitude" value="-16.67" />
  <attribute name="ebas_station_altitude" value="20.0 m" />
  <attribute name="ebas_measurement_altitude" value="1.0 m" />
  <attribute name="ebas_measurement_height" value="3.0 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_unit" value="ng/m3" />
  <attribute name="ebas_matrix" value="aerosol" />
  <attribute name="ebas_laboratory_code" value="DK01L" />
  <attribute name="ebas_instrument_type" value="filter_3pack" />
  <attribute name="ebas_instrument_name" value="f3p_10" />
  <attribute name="ebas_method_ref" value="DK01L_ATAIR_01" />
  <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v1996" />
  <attribute name="ebas_inlet_type" value="Hat or hood" />
  <attribute name="ebas_inlet_description" value="Downward facing" />
  <attribute name="ebas_medium" value="Teflon" />
  <attribute name="ebas_sample_preparation" value="Water extraction after ultrasonic treatment" />
  <attribute name="ebas_blank_correction" value="Blank corrected" />
  <attribute name="ebas_humidity_temperaure_control" value="None" />
  <attribute name="ebas_humidity_temperaure_control_description" value="filter kept at ambient conditions together with sampling head." />
  <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of field blanks" />
  <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
  <attribute name="ebas_zero_negative_values" value="Zero/negative values reported as measured if within detection limit, flagged with 780" />
  <attribute name="ebas_organization" value="DK01L, National Environmental Research Institute, NERI, , &quot;P.O.Box 358, Fredriksborgvei 399, DK-4000 Roskilde, Denmark&quot;, , , , " />
  <attribute name="ebas_originator" value="Nøjgaard, Jacob Klenø, jakn@envs.au.dk, Aarhus Universitet, ATAIR, ENVIS, Frederiksborgvej 399, Postbox 358, 4000, Roskilde, Denmark" />
  <attribute name="ebas_submitter" value="Keller, Rune, , , , , , , , , " />
  <attribute name="_NCProperties" value="version=2,netcdf=4.9.0,hdf5=1.12.2" />
  <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="comment" value="{&#xA;    &quot;Data definition&quot;: &quot;EBAS_1.1&quot;,&#xA;    &quot;Data license&quot;: &quot;https://creativecommons.org/licenses/by/4.0/&quot;,&#xA;    &quot;Citation&quot;: &quot;Henrik Skov, Jacob Klenø Nøjgaard, Henrik Skov, Jacob Klenø Nøjgaard, Henrik Skov, Jacob Klenø Nøjgaard, Henrik Skov, Jacob Klenø Nøjgaard, Henrik Skov, Jacob Klenø Nøjgaard, arsenic, cadmium, lead, nickel - filter_3pack at Villum Research Station, Station Nord, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/6UZC-RYPP&quot;,&#xA;    &quot;Set type code&quot;: &quot;TI&quot;,&#xA;    &quot;Timezone&quot;: &quot;UTC&quot;,&#xA;    &quot;File name&quot;: &quot;6UZC-RYPP.nc&quot;,&#xA;    &quot;Represents DOI&quot;: &quot;https://doi.org/10.48597/6UZC-RYPP&quot;,&#xA;    &quot;Contains data from DOI&quot;: &quot;https://doi.org/10.48597/6UZC-RYPP&quot;,&#xA;    &quot;File creation&quot;: &quot;2023-12-11T16:58:42.099058 UTC&quot;,&#xA;    &quot;Export state&quot;: &quot;2020-06-17T09:10:25.757000 UTC&quot;,&#xA;    &quot;Export filter&quot;: &quot;exclude-900,exclude-invalid&quot;,&#xA;    &quot;Startdate&quot;: &quot;20140107040000&quot;,&#xA;    &quot;Revision date&quot;: &quot;20230628114623&quot;,&#xA;    &quot;Version&quot;: &quot;1&quot;,&#xA;    &quot;Version description&quot;: &quot;initial revision, manually inspected&quot;,&#xA;    &quot;Statistics&quot;: &quot;arithmetic mean&quot;,&#xA;    &quot;Data level&quot;: &quot;2&quot;,&#xA;    &quot;Period code&quot;: &quot;5y&quot;,&#xA;    &quot;Resolution code&quot;: &quot;1w&quot;,&#xA;    &quot;Sample duration&quot;: &quot;1w&quot;,&#xA;    &quot;Orig. time res.&quot;: &quot;1w&quot;,&#xA;    &quot;Station code&quot;: &quot;DK0010G&quot;,&#xA;    &quot;Platform code&quot;: &quot;DK0010S&quot;,&#xA;    &quot;Station name&quot;: &quot;Villum Research Station, Station Nord&quot;,&#xA;    &quot;Station latitude&quot;: &quot;81.6&quot;,&#xA;    &quot;Station longitude&quot;: &quot;-16.67&quot;,&#xA;    &quot;Station altitude&quot;: &quot;20.0 m&quot;,&#xA;    &quot;Measurement altitude&quot;: &quot;1.0 m&quot;,&#xA;    &quot;Measurement height&quot;: &quot;3.0 m&quot;,&#xA;    &quot;Regime&quot;: &quot;IMG&quot;,&#xA;    &quot;Unit&quot;: &quot;ng/m3&quot;,&#xA;    &quot;Matrix&quot;: &quot;aerosol&quot;,&#xA;    &quot;Laboratory code&quot;: &quot;DK01L&quot;,&#xA;    &quot;Instrument type&quot;: &quot;filter_3pack&quot;,&#xA;    &quot;Instrument name&quot;: &quot;f3p_10&quot;,&#xA;    &quot;Method ref&quot;: &quot;DK01L_ATAIR_01&quot;,&#xA;    &quot;Standard method&quot;: &quot;SOP=EMEP_manual_v1996&quot;,&#xA;    &quot;Inlet type&quot;: &quot;Hat or hood&quot;,&#xA;    &quot;Inlet description&quot;: &quot;Downward facing&quot;,&#xA;    &quot;Medium&quot;: &quot;Teflon&quot;,&#xA;    &quot;Sample preparation&quot;: &quot;Water extraction after ultrasonic treatment&quot;,&#xA;    &quot;Blank correction&quot;: &quot;Blank corrected&quot;,&#xA;    &quot;Humidity/temperature control&quot;: &quot;None&quot;,&#xA;    &quot;Humidity/temperature control description&quot;: &quot;filter kept at ambient conditions together with sampling head.&quot;,&#xA;    &quot;Detection limit expl.&quot;: &quot;Determined by taking 3 times standard deviation of ensemble of field blanks&quot;,&#xA;    &quot;Zero/negative values code&quot;: &quot;Zero/negative possible&quot;,&#xA;    &quot;Zero/negative values&quot;: &quot;Zero/negative values reported as measured if within detection limit, flagged with 780&quot;,&#xA;    &quot;Organization&quot;: &quot;DK01L, National Environmental Research Institute, NERI, , \&quot;P.O.Box 358, Fredriksborgvei 399, DK-4000 Roskilde, Denmark\&quot;, , , , &quot;,&#xA;    &quot;Originator&quot;: &quot;Nøjgaard, Jacob Klenø, jakn@envs.au.dk, Aarhus Universitet, ATAIR, ENVIS, Frederiksborgvej 399, Postbox 358, 4000, Roskilde, Denmark&quot;,&#xA;    &quot;Submitter&quot;: &quot;Keller, Rune, , , , , , , , , &quot;&#xA;}" />
  <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="260" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="5" />
  <dimension name="arsenic_qc_flags" length="1" />
  <dimension name="cadmium_qc_flags" length="1" />
  <dimension name="lead_qc_flags" length="1" />
  <dimension name="nickel_qc_flags" length="1" />
  <group name="CFMetadata">
    <attribute name="time_coverage_start" value="2014-01-10T16:00:00Z" />
    <attribute name="time_coverage_end" value="2018-12-29T16:00:00Z" />
    <attribute name="time_coverage_units" value="seconds" />
    <attribute name="time_coverage_resolution" value="605133.0" />
    <attribute name="time_coverage_duration" value="P0Y0M1814DT0H0M0.000S" />
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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" />
  </variable>
  <variable name="metadata_time_bnds" shape="metadata_time tbnds" type="double">
    <attribute name="long_name" value="time bounds for ebas metadata intervals" />
  </variable>
  <variable name="arsenic" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_arsenic_in_dry_aerosol_particles_in _air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="arsenic_qc arsenic_ebasmetadata" />
    <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="20230628114623" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1w" />
    <attribute name="ebas_orig_time_res" value="1w" />
    <attribute name="ebas_station_code" value="DK0010G" />
    <attribute name="ebas_platform_code" value="DK0010S" />
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    <attribute name="ebas_station_latitude" value="81.6" />
    <attribute name="ebas_station_longitude" value="-16.67" />
    <attribute name="ebas_station_altitude" value="20.0 m" />
    <attribute name="ebas_measurement_altitude" value="1.0 m" />
    <attribute name="ebas_measurement_height" value="3.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="arsenic" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="aerosol" />
    <attribute name="ebas_laboratory_code" value="DK01L" />
    <attribute name="ebas_instrument_type" value="filter_3pack" />
    <attribute name="ebas_instrument_name" value="f3p_10" />
    <attribute name="ebas_method_ref" value="DK01L_ATAIR_01" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v1996" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing" />
    <attribute name="ebas_medium" value="Teflon" />
    <attribute name="ebas_sample_preparation" value="Water extraction after ultrasonic treatment" />
    <attribute name="ebas_blank_correction" value="Blank corrected" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_humidity_temperaure_control_description" value="filter kept at ambient conditions together with sampling head." />
    <attribute name="ebas_detection_limit" value="0.07 ng/m3" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of field blanks" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero/negative values reported as measured if within detection limit, flagged with 780" />
    <attribute name="ebas_organization" value="DK01L, National Environmental Research Institute, NERI, , &quot;P.O.Box 358, Fredriksborgvei 399, DK-4000 Roskilde, Denmark&quot;, , , , " />
    <attribute name="ebas_originator" value="Nøjgaard, Jacob Klenø, cmo@dmu.dk, Aarhus Universitet, ATAIR, ENVIS, Frederiksborgvej 399, Postbox 358, 4000, Roskilde, Denmark" />
  </variable>
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    <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="arsenic_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="cadmium" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_cadmium_in_dry_aerosol_particles_in _air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="cadmium_qc cadmium_ebasmetadata" />
    <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="20230628114623" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1w" />
    <attribute name="ebas_orig_time_res" value="1w" />
    <attribute name="ebas_station_code" value="DK0010G" />
    <attribute name="ebas_platform_code" value="DK0010S" />
    <attribute name="ebas_station_name" value="Villum Research Station, Station Nord" />
    <attribute name="ebas_station_latitude" value="81.6" />
    <attribute name="ebas_station_longitude" value="-16.67" />
    <attribute name="ebas_station_altitude" value="20.0 m" />
    <attribute name="ebas_measurement_altitude" value="1.0 m" />
    <attribute name="ebas_measurement_height" value="3.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="cadmium" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="aerosol" />
    <attribute name="ebas_laboratory_code" value="DK01L" />
    <attribute name="ebas_instrument_type" value="filter_3pack" />
    <attribute name="ebas_instrument_name" value="f3p_10" />
    <attribute name="ebas_method_ref" value="DK01L_ATAIR_01" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v1996" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing" />
    <attribute name="ebas_medium" value="Teflon" />
    <attribute name="ebas_sample_preparation" value="Water extraction after ultrasonic treatment" />
    <attribute name="ebas_blank_correction" value="Blank corrected" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_humidity_temperaure_control_description" value="filter kept at ambient conditions together with sampling head." />
    <attribute name="ebas_detection_limit" value="0.1 ng/m3" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of field blanks" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero/negative values reported as measured if within detection limit, flagged with 780" />
    <attribute name="ebas_organization" value="DK01L, National Environmental Research Institute, NERI, , &quot;P.O.Box 358, Fredriksborgvei 399, DK-4000 Roskilde, Denmark&quot;, , , , " />
    <attribute name="ebas_originator" value="Nøjgaard, Jacob Klenø, cmo@dmu.dk, Aarhus Universitet, ATAIR, ENVIS, Frederiksborgvej 399, Postbox 358, 4000, Roskilde, Denmark" />
  </variable>
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    <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="cadmium_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="lead" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_lead_in_dry_aerosol_particles_in _air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="lead_qc lead_ebasmetadata" />
    <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="20230628114623" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1w" />
    <attribute name="ebas_orig_time_res" value="1w" />
    <attribute name="ebas_station_code" value="DK0010G" />
    <attribute name="ebas_platform_code" value="DK0010S" />
    <attribute name="ebas_station_name" value="Villum Research Station, Station Nord" />
    <attribute name="ebas_station_latitude" value="81.6" />
    <attribute name="ebas_station_longitude" value="-16.67" />
    <attribute name="ebas_station_altitude" value="20.0 m" />
    <attribute name="ebas_measurement_altitude" value="1.0 m" />
    <attribute name="ebas_measurement_height" value="3.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="lead" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="aerosol" />
    <attribute name="ebas_laboratory_code" value="DK01L" />
    <attribute name="ebas_instrument_type" value="filter_3pack" />
    <attribute name="ebas_instrument_name" value="f3p_10" />
    <attribute name="ebas_method_ref" value="DK01L_ATAIR_01" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v1996" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing" />
    <attribute name="ebas_medium" value="Teflon" />
    <attribute name="ebas_sample_preparation" value="Water extraction after ultrasonic treatment" />
    <attribute name="ebas_blank_correction" value="Blank corrected" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_humidity_temperaure_control_description" value="filter kept at ambient conditions together with sampling head." />
    <attribute name="ebas_detection_limit" value="0.4 ng/m3" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of field blanks" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero/negative values reported as measured if within detection limit, flagged with 780" />
    <attribute name="ebas_organization" value="DK01L, National Environmental Research Institute, NERI, , &quot;P.O.Box 358, Fredriksborgvei 399, DK-4000 Roskilde, Denmark&quot;, , , , " />
    <attribute name="ebas_originator" value="Nøjgaard, Jacob Klenø, cmo@dmu.dk, Aarhus Universitet, ATAIR, ENVIS, Frederiksborgvej 399, Postbox 358, 4000, Roskilde, Denmark" />
  </variable>
  <variable name="lead_qc" shape="lead_qc_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="lead_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="nickel" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_nickel_in_dry_aerosol_particles_in _air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="nickel_qc nickel_ebasmetadata" />
    <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="20230628114623" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1w" />
    <attribute name="ebas_orig_time_res" value="1w" />
    <attribute name="ebas_station_code" value="DK0010G" />
    <attribute name="ebas_platform_code" value="DK0010S" />
    <attribute name="ebas_station_name" value="Villum Research Station, Station Nord" />
    <attribute name="ebas_station_latitude" value="81.6" />
    <attribute name="ebas_station_longitude" value="-16.67" />
    <attribute name="ebas_station_altitude" value="20.0 m" />
    <attribute name="ebas_measurement_altitude" value="1.0 m" />
    <attribute name="ebas_measurement_height" value="3.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="nickel" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="aerosol" />
    <attribute name="ebas_laboratory_code" value="DK01L" />
    <attribute name="ebas_instrument_type" value="filter_3pack" />
    <attribute name="ebas_instrument_name" value="f3p_10" />
    <attribute name="ebas_method_ref" value="DK01L_ATAIR_01" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v1996" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="Downward facing" />
    <attribute name="ebas_medium" value="Teflon" />
    <attribute name="ebas_sample_preparation" value="Water extraction after ultrasonic treatment" />
    <attribute name="ebas_blank_correction" value="Blank corrected" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_humidity_temperaure_control_description" value="filter kept at ambient conditions together with sampling head." />
    <attribute name="ebas_detection_limit" value="0.7 ng/m3" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of field blanks" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero/negative values reported as measured if within detection limit, flagged with 780" />
    <attribute name="ebas_organization" value="DK01L, National Environmental Research Institute, NERI, , &quot;P.O.Box 358, Fredriksborgvei 399, DK-4000 Roskilde, Denmark&quot;, , , , " />
    <attribute name="ebas_originator" value="Nøjgaard, Jacob Klenø, cmo@dmu.dk, Aarhus Universitet, ATAIR, ENVIS, Frederiksborgvej 399, Postbox 358, 4000, Roskilde, Denmark" />
  </variable>
  <variable name="nickel_qc" shape="nickel_qc_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="nickel_ebasmetadata" 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 1900-01-01 00:00:00 UTC" />
    <attribute name="axis" value="T" />
    <attribute name="calendar" value="gregorian" />
    <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 1900-01-01 00:00:00 UTC" />
    <attribute name="axis" value="T" />
    <attribute name="calendar" value="gregorian" />
    <attribute name="bounds" value="metadata_time_bnds" />
    <attribute name="_CoordinateAxisType" value="Time" />
  </variable>
</netcdf>
