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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, 16) at Rucava" />
  <attribute name="keywords" value="mass_concentration_of_dibenzo_ah_anthracene_in_precipitation, mass_concentration_of_benzo_a_pyrene_in_precipitation, inden_123cd_pyrene, Rucava, LV0010R, benzo_a_pyrene, EMEP, dibenzo_ah_anthracene, precip, mass_concentration_of_inden_123cd_pyrene_in_precipitation, benz_a_anthracene, mass_concentration_of_benzo_k_fluoranthene_in_precipitation, mass_concentration_of_benz_a_anthracene_in_precipitation, mass_concentration_of_benzo_b_fluoranthene_in_precipitation, benzo_k_fluoranthene, benzo_b_fluoranthene" />
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  <attribute name="project" value="EMEP" />
  <attribute name="acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP." />
  <attribute name="doi" value="https://doi.org/10.48597/ZR8C-RDDE" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Indriksone, I., EMEP, 2023, PAHs (polycyclic aromatic hydrocarbons, 16) at Rucava, data hosted by EBAS at NILU, Part of DOI: https://doi.org/10.48597/ZR8C-RDDE" />
  <attribute name="summary" value="PAHs (polycyclic aromatic hydrocarbons, 16) at Rucava. These measurements are gathered as a part of the following projects EMEP and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: benz_a_anthracene in precip (mass_concentration_of_benz_a_anthracene_in_precipitation), benzo_a_pyrene in precip (mass_concentration_of_benzo_a_pyrene_in_precipitation), benzo_b_fluoranthene in precip (mass_concentration_of_benzo_b_fluoranthene_in_precipitation), benzo_k_fluoranthene in precip (mass_concentration_of_benzo_k_fluoranthene_in_precipitation), dibenzo_ah_anthracene in precip (mass_concentration_of_dibenzo_ah_anthracene_in_precipitation), inden_123cd_pyrene in precip (mass_concentration_of_inden_123cd_pyrene_in_precipitation)" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="LV33L, Latvian Environment, Geology and Meteorology Centre, Monitoring  Department, Maskavas Str. 165, LV-1019, Riga, Latvia" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2023-05-18T12:00:00 UTC" />
  <attribute name="date_metadata_modified" value="2023-05-18T12:00:00 UTC" />
  <attribute name="creator_name" value="Iveta Indriksone" />
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  <attribute name="creator_email" value="" />
  <attribute name="creator_institution" value="" />
  <attribute name="contributor_name" value="Aleksandra Kanisceva" />
  <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" />
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  <attribute name="time_coverage_start" value="2022-01-03T08:00:00 UTC" />
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  <attribute name="time_coverage_duration" value="P0000-11-30T00:00:00" />
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  <attribute name="ebas_data_level" value="2" />
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  <attribute name="ebas_station_code" value="LV0010R" />
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  <attribute name="ebas_station_latitude" value="56.161944" />
  <attribute name="ebas_station_longitude" value="21.173056" />
  <attribute name="ebas_station_altitude" value="18.0 m" />
  <attribute name="ebas_measurement_altitude" value="18.0 m" />
  <attribute name="ebas_measurement_height" value="1.8 m" />
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  <attribute name="ebas_blank_correction" value="Not blank corrected" />
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  <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth" />
  <attribute name="ebas_framework_contact_email" value="kt@nilu.no" />
  <attribute name="ebas_originator" value="Indriksone, Iveta, , , , , , , , , " />
  <attribute name="ebas_submitter" value="Kanisceva, Aleksandra, aleksandra.kanisceva@lvgmc.lv, Latvian Environment Geology and Meteorology Centre, LEGMC, Monitoring Department, Maskavas 165, , 1019, Riga, Latvia" />
  <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP." />
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  <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;Indriksone, I., EMEP, 2023, PAHs (polycyclic aromatic hydrocarbons, 16) at Rucava, data hosted by EBAS at NILU, Part of DOI: https://doi.org/10.48597/ZR8C-RDDE&quot;, &#xA;    &quot;Set type code&quot;: &quot;TI&quot;, &#xA;    &quot;Timezone&quot;: &quot;UTC&quot;, &#xA;    &quot;File name&quot;: &quot;LV0010R.20220103080000.20230518120000...precip.52w.1w..LV33L_Waters_Alliance_2695+2475.lev2.nc&quot;, &#xA;    &quot;Contains data from DOI&quot;: &quot;https://doi.org/10.48597/ZR8C-RDDE&quot;, &#xA;    &quot;File creation&quot;: &quot;2026-07-01T13:08:03.758789 UTC&quot;, &#xA;    &quot;Export state&quot;: &quot;2026-07-01T12:25:04.067100 UTC&quot;, &#xA;    &quot;Export filter&quot;: &quot;exclude-900,exclude-invalid&quot;, &#xA;    &quot;Startdate&quot;: &quot;20220103080000&quot;, &#xA;    &quot;Revision date&quot;: &quot;20230518120000&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;52w&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;LV0010R&quot;, &#xA;    &quot;Platform code&quot;: &quot;LV0010S&quot;, &#xA;    &quot;Station name&quot;: &quot;Rucava&quot;, &#xA;    &quot;Station latitude&quot;: &quot;56.161944&quot;, &#xA;    &quot;Station longitude&quot;: &quot;21.173056&quot;, &#xA;    &quot;Station altitude&quot;: &quot;18.0 m&quot;, &#xA;    &quot;Measurement altitude&quot;: &quot;18.0 m&quot;, &#xA;    &quot;Measurement height&quot;: &quot;1.8 m&quot;, &#xA;    &quot;Regime&quot;: &quot;IMG&quot;, &#xA;    &quot;Matrix&quot;: &quot;precip&quot;, &#xA;    &quot;Laboratory code&quot;: &quot;LV33L&quot;, &#xA;    &quot;Analytical laboratory code&quot;: &quot;LV33L&quot;, &#xA;    &quot;Analytical measurement technique&quot;: &quot;HPLC&quot;, &#xA;    &quot;Analytical instrument name&quot;: &quot;Waters_Alliance_2695+2475&quot;, &#xA;    &quot;Analytical instrument manufacturer&quot;: &quot;Waters+Waters&quot;, &#xA;    &quot;Analytical instrument model&quot;: &quot;2695+2475&quot;, &#xA;    &quot;Analytical instrument serial number&quot;: &quot;E05SM4128M_E05475098M&quot;, &#xA;    &quot;Method ref&quot;: &quot;LV33L_Waters_Alliance_2695+2475&quot;, &#xA;    &quot;Blank correction&quot;: &quot;Not blank corrected&quot;, &#xA;    &quot;Detection limit expl.&quot;: &quot;Determined by taking 3 times standard deviation of ensemble of laboratory blanks&quot;, &#xA;    &quot;Zero/negative values code&quot;: &quot;Zero/negative impossible&quot;, &#xA;    &quot;Organization&quot;: &quot;LV33L, \&quot;Latvian Environment, Geology and Meteorology Centre\&quot;, , Monitoring  Department, Maskavas Str. 165, , LV-1019, Riga, Latvia&quot;, &#xA;    &quot;Framework acronym&quot;: &quot;EMEP&quot;, &#xA;    &quot;Framework name&quot;: &quot;European Monitoring and Evaluation Programme&quot;, &#xA;    &quot;Framework description&quot;: &quot;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.&quot;, &#xA;    &quot;Framework contact name&quot;: &quot;Kjetil Tørseth&quot;, &#xA;    &quot;Framework contact email&quot;: &quot;kt@nilu.no&quot;, &#xA;    &quot;Originator&quot;: &quot;Indriksone, Iveta, , , , , , , , , &quot;, &#xA;    &quot;Submitter&quot;: &quot;Kanisceva, Aleksandra, aleksandra.kanisceva@lvgmc.lv, Latvian Environment Geology and Meteorology Centre, LEGMC, Monitoring Department, Maskavas 165, , 1019, Riga, Latvia&quot;, &#xA;    &quot;Acknowledgement&quot;: &quot;Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP.&quot;&#xA;}" />
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  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="1" />
  <dimension name="benzo_k_fluoranthene_qc_flags" length="1" />
  <dimension name="benzo_a_pyrene_qc_flags" length="1" />
  <dimension name="dibenzo_ah_anthracene_qc_flags" length="1" />
  <dimension name="inden_123cd_pyrene_qc_flags" length="1" />
  <dimension name="precipitation_amount_off_qc_flags" length="1" />
  <dimension name="benz_a_anthracene_qc_flags" length="1" />
  <dimension name="benzo_b_fluoranthene_qc_flags" length="1" />
  <group name="CFMetadata">
    <attribute name="time_coverage_start" value="2022-01-06T20:00:00Z" />
    <attribute name="time_coverage_end" value="2022-12-29T20:00:00Z" />
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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" />
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    <attribute name="units" value="ng/l" />
    <attribute name="ancillary_variables" value="benzo_a_pyrene_qc benzo_a_pyrene_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_analytical_laboratory_code" value="LV33L" />
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    <attribute name="ebas_measurement_height" value="1.8 m" />
    <attribute name="ebas_station_latitude" value="56.161944" />
    <attribute name="ebas_instrument_model" value="NSA181KE" />
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    <attribute name="ebas_blank_correction" value="Not blank corrected" />
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    <attribute name="ebas_instrument_name" value="LEGMC_OG_mm_Tretjakov" />
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    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP." />
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    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/l" />
    <attribute name="ancillary_variables" value="inden_123cd_pyrene_qc inden_123cd_pyrene_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_analytical_laboratory_code" value="LV33L" />
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    <attribute name="ebas_station_latitude" value="56.161944" />
    <attribute name="ebas_instrument_model" value="NSA181KE" />
    <attribute name="ebas_analytical_measurement_technique" value="HPLC" />
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    <attribute name="ebas_originator" value="Indriksone, Iveta, , , , , , , , , " />
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    <attribute name="ebas_blank_correction" value="Not blank corrected" />
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    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
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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" />
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  <variable name="benz_a_anthracene_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="dibenzo_ah_anthracene_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="inden_123cd_pyrene_qc" shape="inden_123cd_pyrene_qc_flags time" type="int">
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    <attribute name="standard_name" value="status_flag" />
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    <attribute name="units" value="1" />
  </variable>
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    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
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  <variable name="benz_a_anthracene" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
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    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/l" />
    <attribute name="ancillary_variables" value="benz_a_anthracene_qc benz_a_anthracene_ebasmetadata" />
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    <attribute name="ebas_framework_description" value="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." />
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    <attribute name="ebas_station_latitude" value="56.161944" />
    <attribute name="ebas_instrument_model" value="NSA181KE" />
    <attribute name="ebas_analytical_measurement_technique" value="HPLC" />
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    <attribute name="ebas_originator" value="Indriksone, Iveta, , , , , , , , , " />
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    <attribute name="ebas_station_altitude" value="18.0 m" />
    <attribute name="ebas_blank_correction" value="Not blank corrected" />
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    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP." />
    <attribute name="ebas_regime" value="IMG" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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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="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/l" />
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    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP." />
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    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_platform_code" value="LV0010S" />
    <attribute name="ebas_station_altitude" value="18.0 m" />
    <attribute name="ebas_blank_correction" value="Not blank corrected" />
    <attribute name="ebas_submitter" value="Kanisceva, Aleksandra, aleksandra.kanisceva@lvgmc.lv, Latvian Environment Geology and Meteorology Centre, LEGMC, Monitoring Department, Maskavas 165, , 1019, Riga, Latvia" />
    <attribute name="ebas_measurement_altitude" value="18.0 m" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP." />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_orig_time_res" value="1w" />
    <attribute name="ebas_organization" value="LV33L, &quot;Latvian Environment, Geology and Meteorology Centre&quot;, , Monitoring  Department, Maskavas Str. 165, , LV-1019, Riga, Latvia" />
    <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth" />
    <attribute name="ebas_framework_name" value="European Monitoring and Evaluation Programme" />
    <attribute name="ebas_sample_duration" value="1w" />
    <attribute name="ebas_analytical_instrument_name" value="Waters_Alliance_2695+2475" />
    <attribute name="ebas_framework_acronym" value="EMEP" />
    <attribute name="ebas_method_ref" value="LV33L_Waters_Alliance_2695+2475" />
  </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>
