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  <attribute name="featureType" value="timeSeries" />
  <attribute name="title" value="Ground based in situ observations of denuder at Montelibretti (IT0001R)" />
  <attribute name="keywords" value="nitrate, ammonium, aerosol, pm10_pm25, air, pm25, Montelibretti, ammonia, nitric_acid, sulphate_total, IT0001R, EMEP, sulphur_dioxide" />
  <attribute name="id" value="MARQ-HEQF.nc" />
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  <attribute name="acknowledgement" type="double" />
  <attribute name="doi" value="https://doi.org/10.48597/MARQ-HEQF" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Cinzia Perrino, ammonia, ammonium, nitrate, nitric_acid, sulphate_total, sulphur_dioxide - denuder at Montelibretti, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/MARQ-HEQF" />
  <attribute name="summary" value="Ground based in situ observations of denuder at Montelibretti (IT0001R). 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: ammonia in air, ammonium in aerosol, ammonium in aerosol, nitrate in aerosol, nitrate in pm10_pm25, nitrate in pm25, nitrate in aerosol, nitrate in pm10_pm25, nitrate in pm25, nitric_acid in air, sulphate_total in aerosol, sulphate_total in pm10_pm25, sulphate_total in pm25, sulphate_total in aerosol, sulphate_total in pm10_pm25, sulphate_total in pm25, sulphur_dioxide in air" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="IT01L, National Research Council - Institute of Atmospheric Pollution Research, Via Salaria Km. 29.300, CP 10 - 00015 - Monterotondo Stazione, Roma, Italy" />
  <attribute name="date_created" value="2017-01-16T13:01:54 UTC" />
  <attribute name="date_metadata_modified" value="2017-01-16T13:01:54 UTC" />
  <attribute name="creator_name" value="Cinzia Perrino" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value="" />
  <attribute name="creator_institution" value="" />
  <attribute name="contributor_name" value="Cinzia Perrino" />
  <attribute name="contributor_role" value="data submitter" />
  <attribute name="publisher_type" value="institution" />
  <attribute name="publisher_name" value="NILU - Norwegian Institute for Air Research, ATMOS, EBAS" />
  <attribute name="publisher_institution" value="NILU - Norwegian Institute for Air Research, ATMOS, EBAS" />
  <attribute name="publisher_email" value="ebas@nilu.no" />
  <attribute name="publisher_url" value="https://www.nilu.no/" />
  <attribute name="geospatial_bounds" value="POINT Z (42.1 12.633333 48.0)" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
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  <attribute name="time_coverage_start" value="2014-01-06T07:00:00 UTC" />
  <attribute name="time_coverage_end" value="2014-12-30T07:00:00 UTC" />
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  <attribute name="ebas_file_creation" value="2023-12-11T22:56:49.242200 UTC" />
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  <attribute name="ebas_startdate" value="20140106070000" />
  <attribute name="ebas_revision_date" value="20170116130154" />
  <attribute name="ebas_statistics" value="arithmetic mean" />
  <attribute name="ebas_period_code" value="12mo" />
  <attribute name="ebas_resolution_code" value="1w" />
  <attribute name="ebas_sample_duration" value="1d" />
  <attribute name="ebas_station_code" value="IT0001R" />
  <attribute name="ebas_platform_code" value="IT0001S" />
  <attribute name="ebas_station_name" value="Montelibretti" />
  <attribute name="ebas_station_latitude" value="42.1" />
  <attribute name="ebas_station_longitude" value="12.633333" />
  <attribute name="ebas_station_altitude" value="48.0 m" />
  <attribute name="ebas_regime" value="IMG" />
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  <attribute name="ebas_instrument_type" value="denuder" />
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  <attribute name="ebas_organization" value="IT01L, National Research Council - Institute of Atmospheric Pollution Research, , , Via Salaria Km. 29.300, CP 10 - 00015 - Monterotondo Stazione, , Roma, Italy" />
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  <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;Cinzia Perrino, ammonia, ammonium, nitrate, nitric_acid, sulphate_total, sulphur_dioxide - denuder at Montelibretti, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/MARQ-HEQF&quot;,&#xA;    &quot;Set type code&quot;: &quot;TI&quot;,&#xA;    &quot;Timezone&quot;: &quot;UTC&quot;,&#xA;    &quot;File name&quot;: &quot;MARQ-HEQF.nc&quot;,&#xA;    &quot;Represents DOI&quot;: &quot;https://doi.org/10.48597/MARQ-HEQF&quot;,&#xA;    &quot;Contains data from DOI&quot;: &quot;https://doi.org/10.48597/MARQ-HEQF&quot;,&#xA;    &quot;File creation&quot;: &quot;2023-12-11T22:56:49.242200 UTC&quot;,&#xA;    &quot;Export state&quot;: &quot;2016-09-23T08:47:38.677000 UTC&quot;,&#xA;    &quot;Export filter&quot;: &quot;exclude-900,exclude-invalid&quot;,&#xA;    &quot;Startdate&quot;: &quot;20140106070000&quot;,&#xA;    &quot;Revision date&quot;: &quot;20170116130154&quot;,&#xA;    &quot;Statistics&quot;: &quot;arithmetic mean&quot;,&#xA;    &quot;Period code&quot;: &quot;12mo&quot;,&#xA;    &quot;Resolution code&quot;: &quot;1w&quot;,&#xA;    &quot;Sample duration&quot;: &quot;1d&quot;,&#xA;    &quot;Station code&quot;: &quot;IT0001R&quot;,&#xA;    &quot;Platform code&quot;: &quot;IT0001S&quot;,&#xA;    &quot;Station name&quot;: &quot;Montelibretti&quot;,&#xA;    &quot;Station latitude&quot;: &quot;42.1&quot;,&#xA;    &quot;Station longitude&quot;: &quot;12.633333&quot;,&#xA;    &quot;Station altitude&quot;: &quot;48.0 m&quot;,&#xA;    &quot;Regime&quot;: &quot;IMG&quot;,&#xA;    &quot;Laboratory code&quot;: &quot;IT01L&quot;,&#xA;    &quot;Instrument type&quot;: &quot;denuder&quot;,&#xA;    &quot;Instrument name&quot;: &quot;den_1&quot;,&#xA;    &quot;Method ref&quot;: &quot;IT01L_IC_a&quot;,&#xA;    &quot;Organization&quot;: &quot;IT01L, National Research Council - Institute of Atmospheric Pollution Research, , , Via Salaria Km. 29.300, CP 10 - 00015 - Monterotondo Stazione, , Roma, Italy&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;Perrino, Cinzia, , , , , , , , , &quot;,&#xA;    &quot;Submitter&quot;: &quot;Perrino, Cinzia, , , , , , , , , &quot;&#xA;}" />
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  <attribute name="history" value="None" />
  <attribute name="creator_url" value="ebas.nilu.no" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="_CoordSysBuilder" value="ucar.nc2.internal.dataset.conv.CF1Convention" />
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  <dimension name="tbnds" length="2" />
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  <dimension name="sulphur_dioxide_qc_flags" length="1" />
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    <attribute name="metadata_creation" value="2026-05-17" />
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    <attribute name="long_name" value="time bounds for measurement" />
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