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  <attribute name="Conventions" value="CF-1.8, ACDD-1.3" />
  <attribute name="featureType" value="timeSeries" />
  <attribute name="title" value="Particle_number_concentration at RADO-Bucharest II" />
  <attribute name="keywords" value="particle_number_concentration, GAW-WDCA, RO0010R, pm10, RADO-Bucharest II, ACTRIS, number_concentration_of_pm10_aerosol_particles_in_air" />
  <attribute name="id" value="RO0010R.20231108130000.20260611080227.cpc...7mo.1h.RO03L_cpc_TSI_375010_INO.RO03L_CPC.lev2.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="ACTRIS, GAW-WDCA" />
  <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 frameworks: ACTRIS, GAW-WDCA. Request acknowledgement details from data originator" />
  <attribute name="doi" value="https://doi.org/10.48597/EAXR-GT54" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Vasilescu, J., Dandocsi, A., ACTRIS, GAW-WDCA, 2026, Particle_number_concentration at RADO-Bucharest II, data hosted by EBAS at NILU, Part of DOI: https://doi.org/10.48597/EAXR-GT54" />
  <attribute name="summary" value="Particle_number_concentration at RADO-Bucharest II. These measurements are gathered as a part of the following projects ACTRIS, GAW-WDCA and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: particle_number_concentration in pm10 (number_concentration_of_pm10_aerosol_particles_in_air), particle_number_concentration in pm10 (number_concentration_of_pm10_aerosol_particles_in_air), particle_number_concentration in pm10 (number_concentration_of_pm10_aerosol_particles_in_air)" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="RO03L, National Institute of R&amp;D for Optoelectronics, INOE, Remote Sensing Department, 409 Atomistilor Str., 077125, Magurele, Ilfov, Romania" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2026-06-11T08:02:27 UTC" />
  <attribute name="date_metadata_modified" value="2026-06-11T08:02:27 UTC" />
  <attribute name="creator_name" value="Jeni Vasilescu, Andrei Dandocsi" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value="jeni@inoe.ro, andrei.dandocsi@inoe.ro" />
  <attribute name="creator_institution" value="&quot;National Institute of Research and Development for Optoelectronics, Remote Sensing Department, INOE2000&quot;, &quot;National Institute of Research and Development for Optoelectronics, Remote Sensing Department, INOE2000&quot;" />
  <attribute name="contributor_name" value="Jeni Vasilescu" />
  <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 (44.344 26.012 77.0)" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
  <attribute name="geospatial_lat_min" type="double" value="44.344" />
  <attribute name="geospatial_lat_max" type="double" value="44.344" />
  <attribute name="geospatial_lon_min" type="double" value="26.012" />
  <attribute name="geospatial_lon_max" type="double" value="26.012" />
  <attribute name="geospatial_vertical_min" type="double" value="77.0" />
  <attribute name="geospatial_vertical_max" type="double" value="77.0" />
  <attribute name="geospatial_vertical_positive" value="up" />
  <attribute name="time_coverage_start" value="2023-11-08T13:00:00 UTC" />
  <attribute name="time_coverage_end" value="2024-05-27T09:00:00 UTC" />
  <attribute name="time_coverage_duration" value="P0000-06-18T20:00:00" />
  <attribute name="time_coverage_resolution" value="P0000-00-00T01:00:00" />
  <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="Vasilescu, J., Dandocsi, A., ACTRIS, GAW-WDCA, 2026, Particle_number_concentration at RADO-Bucharest II, data hosted by EBAS at NILU, Part of DOI: https://doi.org/10.48597/EAXR-GT54" />
  <attribute name="ebas_set_type_code" value="TU" />
  <attribute name="ebas_timezone" value="UTC" />
  <attribute name="ebas_file_name" value="RO0010R.20231108130000.20260611080227.cpc...7mo.1h.RO03L_cpc_TSI_375010_INO.RO03L_CPC.lev2.nc" />
  <attribute name="ebas_contains_doi" value="https://doi.org/10.48597/EAXR-GT54" />
  <attribute name="ebas_file_creation" value="2026-06-11T11:18:44.632360 UTC" />
  <attribute name="ebas_export_state" value="2026-06-11T10:30:03.317469 UTC" />
  <attribute name="ebas_export_filter" value="exclude-900,exclude-invalid" />
  <attribute name="ebas_startdate" value="20231108130000" />
  <attribute name="ebas_revision_date" value="20260611080227" />
  <attribute name="ebas_version" value="1" />
  <attribute name="ebas_version_description" value="initial revision, INOE_CPC" />
  <attribute name="ebas_data_level" value="2" />
  <attribute name="ebas_period_code" value="7mo" />
  <attribute name="ebas_resolution_code" value="1h" />
  <attribute name="ebas_sample_duration" value="1h" />
  <attribute name="ebas_orig_time_res" value="1mn" />
  <attribute name="ebas_station_code" value="RO0010R" />
  <attribute name="ebas_platform_code" value="RO0010S" />
  <attribute name="ebas_station_name" value="RADO-Bucharest II" />
  <attribute name="ebas_station_land_use" value="Grassland" />
  <attribute name="ebas_station_setting" value="Suburban" />
  <attribute name="ebas_station_latitude" value="44.344" />
  <attribute name="ebas_station_longitude" value="26.012" />
  <attribute name="ebas_station_altitude" value="77.0 m" />
  <attribute name="ebas_measurement_latitude" value="44.344" />
  <attribute name="ebas_measurement_longitude" value="26.012" />
  <attribute name="ebas_measurement_altitude" value="77.0 m" />
  <attribute name="ebas_measurement_height" value="10.0 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_laboratory_code" value="RO03L" />
  <attribute name="ebas_instrument_type" value="cpc" />
  <attribute name="ebas_instrument_name" value="cpc_TSI_375010_INO" />
  <attribute name="ebas_instrument_manufacturer" value="TSI" />
  <attribute name="ebas_instrument_model" value="3750" />
  <attribute name="ebas_instrument_serial_number" value="375010233403" />
  <attribute name="ebas_method_ref" value="RO03L_CPC" />
  <attribute name="ebas_standard_method" value="None" />
  <attribute name="ebas_inlet_type" value="Impactor--direct" />
  <attribute name="ebas_inlet_description" value="PM10 at ambient humidity inlet, Thermo, flow 16.6 l/min" />
  <attribute name="ebas_humidity_temperaure_control" value="Nafion dryer" />
  <attribute name="ebas_humidity_temperaure_control_description" value="sample dried to below 40% RH with nafion and absorption dryers operated with dry compressed air" />
  <attribute name="ebas_volume_std_temperature" value="273.15 K" />
  <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
  <attribute name="ebas_measurement_uncertainty_expl" value="typical value of unit-to-unit variability" />
  <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
  <attribute name="ebas_zero_negative_values" value="Zero values may appear due to statistical variations at very low concentrations" />
  <attribute name="ebas_organization" value="RO03L, National Institute of R&amp;D for Optoelectronics, INOE, Remote Sensing Department, 409 Atomistilor Str., , 077125, &quot;Magurele, Ilfov&quot;, Romania" />
  <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCA" />
  <attribute name="ebas_framework_name" value="European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases, World Data Centre for Aerosols" />
  <attribute name="ebas_framework_description" value="ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre., The World Data Centre for Aerosols is the data repository and archive for microphysical, optical, and chemical properties of atmospheric aerosol of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
  <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Markus Fiebig" />
  <attribute name="ebas_framework_contact_email" value="clm@nilu.no, Markus.Fiebig@nilu.no" />
  <attribute name="ebas_originator" value="Dandocsi, Andrei, andrei.dandocsi@inoe.ro, National Institute of Research and Development for Optoelectronics, INOE2000, Remote Sensing Department, 409 Atomistilor street, Ilfov, RO 77125, Magurele, Romania" />
  <attribute name="ebas_submitter" value="Vasilescu, Jeni, jeni@inoe.ro, National Institute of Research and Development for Optoelectronics, INOE2000, Remote Sensing Department, 409 Atomistilor street, Ilfov, RO 77125, Magurele, Romania" />
  <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: ACTRIS, GAW-WDCA. Request acknowledgement details from data originator" />
  <attribute name="_NCProperties" value="version=2,netcdf=4.9.1,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;Vasilescu, J., Dandocsi, A., ACTRIS, GAW-WDCA, 2026, Particle_number_concentration at RADO-Bucharest II, data hosted by EBAS at NILU, Part of DOI: https://doi.org/10.48597/EAXR-GT54&quot;,&#xA;    &quot;Set type code&quot;: &quot;TU&quot;,&#xA;    &quot;Timezone&quot;: &quot;UTC&quot;,&#xA;    &quot;File name&quot;: &quot;RO0010R.20231108130000.20260611080227.cpc...7mo.1h.RO03L_cpc_TSI_375010_INO.RO03L_CPC.lev2.nc&quot;,&#xA;    &quot;Contains data from DOI&quot;: &quot;https://doi.org/10.48597/EAXR-GT54&quot;,&#xA;    &quot;File creation&quot;: &quot;2026-06-11T11:18:44.632360 UTC&quot;,&#xA;    &quot;Export state&quot;: &quot;2026-06-11T10:30:03.317469 UTC&quot;,&#xA;    &quot;Export filter&quot;: &quot;exclude-900,exclude-invalid&quot;,&#xA;    &quot;Startdate&quot;: &quot;20231108130000&quot;,&#xA;    &quot;Revision date&quot;: &quot;20260611080227&quot;,&#xA;    &quot;Version&quot;: &quot;1&quot;,&#xA;    &quot;Version description&quot;: &quot;initial revision, INOE_CPC&quot;,&#xA;    &quot;Data level&quot;: &quot;2&quot;,&#xA;    &quot;Period code&quot;: &quot;7mo&quot;,&#xA;    &quot;Resolution code&quot;: &quot;1h&quot;,&#xA;    &quot;Sample duration&quot;: &quot;1h&quot;,&#xA;    &quot;Orig. time res.&quot;: &quot;1mn&quot;,&#xA;    &quot;Station code&quot;: &quot;RO0010R&quot;,&#xA;    &quot;Platform code&quot;: &quot;RO0010S&quot;,&#xA;    &quot;Station name&quot;: &quot;RADO-Bucharest II&quot;,&#xA;    &quot;Station land use&quot;: &quot;Grassland&quot;,&#xA;    &quot;Station setting&quot;: &quot;Suburban&quot;,&#xA;    &quot;Station latitude&quot;: &quot;44.344&quot;,&#xA;    &quot;Station longitude&quot;: &quot;26.012&quot;,&#xA;    &quot;Station altitude&quot;: &quot;77.0 m&quot;,&#xA;    &quot;Measurement latitude&quot;: &quot;44.344&quot;,&#xA;    &quot;Measurement longitude&quot;: &quot;26.012&quot;,&#xA;    &quot;Measurement altitude&quot;: &quot;77.0 m&quot;,&#xA;    &quot;Measurement height&quot;: &quot;10.0 m&quot;,&#xA;    &quot;Regime&quot;: &quot;IMG&quot;,&#xA;    &quot;Laboratory code&quot;: &quot;RO03L&quot;,&#xA;    &quot;Instrument type&quot;: &quot;cpc&quot;,&#xA;    &quot;Instrument name&quot;: &quot;cpc_TSI_375010_INO&quot;,&#xA;    &quot;Instrument manufacturer&quot;: &quot;TSI&quot;,&#xA;    &quot;Instrument model&quot;: &quot;3750&quot;,&#xA;    &quot;Instrument serial number&quot;: &quot;375010233403&quot;,&#xA;    &quot;Method ref&quot;: &quot;RO03L_CPC&quot;,&#xA;    &quot;Standard method&quot;: &quot;None&quot;,&#xA;    &quot;Inlet type&quot;: &quot;Impactor--direct&quot;,&#xA;    &quot;Inlet description&quot;: &quot;PM10 at ambient humidity inlet, Thermo, flow 16.6 l/min&quot;,&#xA;    &quot;Humidity/temperature control&quot;: &quot;Nafion dryer&quot;,&#xA;    &quot;Humidity/temperature control description&quot;: &quot;sample dried to below 40% RH with nafion and absorption dryers operated with dry compressed air&quot;,&#xA;    &quot;Volume std. temperature&quot;: &quot;273.15 K&quot;,&#xA;    &quot;Volume std. pressure&quot;: &quot;1013.25 hPa&quot;,&#xA;    &quot;Measurement uncertainty expl.&quot;: &quot;typical value of unit-to-unit variability&quot;,&#xA;    &quot;Zero/negative values code&quot;: &quot;Zero possible&quot;,&#xA;    &quot;Zero/negative values&quot;: &quot;Zero values may appear due to statistical variations at very low concentrations&quot;,&#xA;    &quot;Organization&quot;: &quot;RO03L, National Institute of R&amp;D for Optoelectronics, INOE, Remote Sensing Department, 409 Atomistilor Str., , 077125, \&quot;Magurele, Ilfov\&quot;, Romania&quot;,&#xA;    &quot;Framework acronym&quot;: &quot;ACTRIS, GAW-WDCA&quot;,&#xA;    &quot;Framework name&quot;: &quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases, World Data Centre for Aerosols&quot;,&#xA;    &quot;Framework description&quot;: &quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre., The World Data Centre for Aerosols is the data repository and archive for microphysical, optical, and chemical properties of atmospheric aerosol of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme.&quot;,&#xA;    &quot;Framework contact name&quot;: &quot;Cathrine Lund Myhre, Markus Fiebig&quot;,&#xA;    &quot;Framework contact email&quot;: &quot;clm@nilu.no, Markus.Fiebig@nilu.no&quot;,&#xA;    &quot;Originator&quot;: &quot;Dandocsi, Andrei, andrei.dandocsi@inoe.ro, National Institute of Research and Development for Optoelectronics, INOE2000, Remote Sensing Department, 409 Atomistilor street, Ilfov, RO 77125, Magurele, Romania&quot;,&#xA;    &quot;Submitter&quot;: &quot;Vasilescu, Jeni, jeni@inoe.ro, National Institute of Research and Development for Optoelectronics, INOE2000, Remote Sensing Department, 409 Atomistilor street, Ilfov, RO 77125, Magurele, Romania&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 frameworks: ACTRIS, GAW-WDCA. Request acknowledgement details from data originator&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="4820" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="1" />
  <dimension name="Location" length="1" />
  <dimension name="pressure_qc_flags" length="1" />
  <dimension name="relative_humidity_qc_flags" length="1" />
  <dimension name="temperature_qc_flags" length="1" />
  <dimension name="particle_number_concentration_amean_qc_flags" length="1" />
  <dimension name="particle_number_concentration_prec1587_qc_flags" length="1" />
  <dimension name="particle_number_concentration_perc8413_qc_flags" length="1" />
  <group name="CFMetadata">
    <attribute name="time_coverage_start" value="2023-11-08T13:30:00Z" />
    <attribute name="time_coverage_end" value="2024-05-27T08:30:00Z" />
    <attribute name="time_coverage_units" value="seconds" />
    <attribute name="time_coverage_resolution" value="3600.0" />
    <attribute name="time_coverage_duration" value="P0Y0M200DT19H0M0.000S" />
  </group>
  <group name="NCISOMetadata">
    <attribute name="metadata_creation" value="2026-06-21" />
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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="pressure" shape="Location time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="hPa" />
    <attribute name="ancillary_variables" value="pressure_qc pressure_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="20260611080227" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, INOE_CPC" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="RO0010R" />
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    <attribute name="ebas_station_setting" value="Suburban" />
    <attribute name="ebas_station_latitude" value="44.344" />
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    <attribute name="ebas_station_altitude" value="77.0 m" />
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    <attribute name="ebas_measurement_longitude" value="26.012" />
    <attribute name="ebas_measurement_altitude" value="77.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="pressure" />
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    <attribute name="ebas_matrix" value="instrument" />
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    <attribute name="ebas_instrument_type" value="cpc" />
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    <attribute name="ebas_instrument_serial_number" value="375010233403" />
    <attribute name="ebas_method_ref" value="RO03L_CPC" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_inlet_type" value="Impactor--direct" />
    <attribute name="ebas_inlet_description" value="PM10 at ambient humidity inlet, Thermo, flow 16.6 l/min" />
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    <attribute name="ebas_humidity_temperaure_control_description" value="sample dried to below 40% RH with nafion and absorption dryers operated with dry compressed air" />
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    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Zero values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="RO03L, National Institute of R&amp;D for Optoelectronics, INOE, Remote Sensing Department, 409 Atomistilor Str., , 077125, &quot;Magurele, Ilfov&quot;, Romania" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCA" />
    <attribute name="ebas_framework_name" value="European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases, World Data Centre for Aerosols" />
    <attribute name="ebas_framework_description" value="ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre., The World Data Centre for Aerosols is the data repository and archive for microphysical, optical, and chemical properties of atmospheric aerosol of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, Markus.Fiebig@nilu.no" />
    <attribute name="ebas_originator" value="Dandocsi, Andrei, andrei.dandocsi@inoe.ro, National Institute of Research and Development for Optoelectronics, INOE2000, Remote Sensing Department, 409 Atomistilor street, Ilfov, RO 77125, Magurele, Romania" />
    <attribute name="ebas_submitter" value="Vasilescu, Jeni, jeni@inoe.ro, National Institute of Research and Development for Optoelectronics, INOE2000, Remote Sensing Department, 409 Atomistilor street, Ilfov, RO 77125, Magurele, Romania" />
    <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: ACTRIS, GAW-WDCA. Request acknowledgement details from data originator" />
  </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="pressure_ebasmetadata" shape="Location metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="relative_humidity" shape="Location time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="relative_humidity" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="%" />
    <attribute name="ancillary_variables" value="relative_humidity_qc relative_humidity_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="20260611080227" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, INOE_CPC" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="RO0010R" />
    <attribute name="ebas_platform_code" value="RO0010S" />
    <attribute name="ebas_station_name" value="RADO-Bucharest II" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <attribute name="ebas_station_setting" value="Suburban" />
    <attribute name="ebas_station_latitude" value="44.344" />
    <attribute name="ebas_station_longitude" value="26.012" />
    <attribute name="ebas_station_altitude" value="77.0 m" />
    <attribute name="ebas_measurement_latitude" value="44.344" />
    <attribute name="ebas_measurement_longitude" value="26.012" />
    <attribute name="ebas_measurement_altitude" value="77.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="relative_humidity" />
    <attribute name="ebas_unit" value="%" />
    <attribute name="ebas_matrix" value="instrument" />
    <attribute name="ebas_laboratory_code" value="RO03L" />
    <attribute name="ebas_instrument_type" value="cpc" />
    <attribute name="ebas_instrument_name" value="cpc_TSI_375010_INO" />
    <attribute name="ebas_instrument_manufacturer" value="TSI" />
    <attribute name="ebas_instrument_model" value="3750" />
    <attribute name="ebas_instrument_serial_number" value="375010233403" />
    <attribute name="ebas_method_ref" value="RO03L_CPC" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_inlet_type" value="Impactor--direct" />
    <attribute name="ebas_inlet_description" value="PM10 at ambient humidity inlet, Thermo, flow 16.6 l/min" />
    <attribute name="ebas_humidity_temperaure_control" value="Nafion dryer" />
    <attribute name="ebas_humidity_temperaure_control_description" value="sample dried to below 40% RH with nafion and absorption dryers operated with dry compressed air" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_measurement_uncertainty_expl" value="typical value of unit-to-unit variability" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Zero values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="RO03L, National Institute of R&amp;D for Optoelectronics, INOE, Remote Sensing Department, 409 Atomistilor Str., , 077125, &quot;Magurele, Ilfov&quot;, Romania" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCA" />
    <attribute name="ebas_framework_name" value="European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases, World Data Centre for Aerosols" />
    <attribute name="ebas_framework_description" value="ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre., The World Data Centre for Aerosols is the data repository and archive for microphysical, optical, and chemical properties of atmospheric aerosol of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, Markus.Fiebig@nilu.no" />
    <attribute name="ebas_originator" value="Dandocsi, Andrei, andrei.dandocsi@inoe.ro, National Institute of Research and Development for Optoelectronics, INOE2000, Remote Sensing Department, 409 Atomistilor street, Ilfov, RO 77125, Magurele, Romania" />
    <attribute name="ebas_submitter" value="Vasilescu, Jeni, jeni@inoe.ro, National Institute of Research and Development for Optoelectronics, INOE2000, Remote Sensing Department, 409 Atomistilor street, Ilfov, RO 77125, Magurele, Romania" />
    <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: ACTRIS, GAW-WDCA. Request acknowledgement details from data originator" />
  </variable>
  <variable name="relative_humidity_qc" shape="Location relative_humidity_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="relative_humidity_ebasmetadata" shape="Location metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="temperature" shape="Location time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="K" />
    <attribute name="ancillary_variables" value="temperature_qc temperature_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="20260611080227" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, INOE_CPC" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="RO0010R" />
    <attribute name="ebas_platform_code" value="RO0010S" />
    <attribute name="ebas_station_name" value="RADO-Bucharest II" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <attribute name="ebas_station_setting" value="Suburban" />
    <attribute name="ebas_station_latitude" value="44.344" />
    <attribute name="ebas_station_longitude" value="26.012" />
    <attribute name="ebas_station_altitude" value="77.0 m" />
    <attribute name="ebas_measurement_latitude" value="44.344" />
    <attribute name="ebas_measurement_longitude" value="26.012" />
    <attribute name="ebas_measurement_altitude" value="77.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="temperature" />
    <attribute name="ebas_unit" value="K" />
    <attribute name="ebas_matrix" value="instrument" />
    <attribute name="ebas_laboratory_code" value="RO03L" />
    <attribute name="ebas_instrument_type" value="cpc" />
    <attribute name="ebas_instrument_name" value="cpc_TSI_375010_INO" />
    <attribute name="ebas_instrument_manufacturer" value="TSI" />
    <attribute name="ebas_instrument_model" value="3750" />
    <attribute name="ebas_instrument_serial_number" value="375010233403" />
    <attribute name="ebas_method_ref" value="RO03L_CPC" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_inlet_type" value="Impactor--direct" />
    <attribute name="ebas_inlet_description" value="PM10 at ambient humidity inlet, Thermo, flow 16.6 l/min" />
    <attribute name="ebas_humidity_temperaure_control" value="Nafion dryer" />
    <attribute name="ebas_humidity_temperaure_control_description" value="sample dried to below 40% RH with nafion and absorption dryers operated with dry compressed air" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_measurement_uncertainty_expl" value="typical value of unit-to-unit variability" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Zero values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="RO03L, National Institute of R&amp;D for Optoelectronics, INOE, Remote Sensing Department, 409 Atomistilor Str., , 077125, &quot;Magurele, Ilfov&quot;, Romania" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCA" />
    <attribute name="ebas_framework_name" value="European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases, World Data Centre for Aerosols" />
    <attribute name="ebas_framework_description" value="ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre., The World Data Centre for Aerosols is the data repository and archive for microphysical, optical, and chemical properties of atmospheric aerosol of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, Markus.Fiebig@nilu.no" />
    <attribute name="ebas_originator" value="Dandocsi, Andrei, andrei.dandocsi@inoe.ro, National Institute of Research and Development for Optoelectronics, INOE2000, Remote Sensing Department, 409 Atomistilor street, Ilfov, RO 77125, Magurele, Romania" />
    <attribute name="ebas_submitter" value="Vasilescu, Jeni, jeni@inoe.ro, National Institute of Research and Development for Optoelectronics, INOE2000, Remote Sensing Department, 409 Atomistilor street, Ilfov, RO 77125, Magurele, Romania" />
    <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: ACTRIS, GAW-WDCA. Request acknowledgement details from data originator" />
  </variable>
  <variable name="temperature_qc" shape="Location temperature_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="temperature_ebasmetadata" shape="Location metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="particle_number_concentration_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="number_concentration_of_pm10_aerosol_particles_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="1/cm3" />
    <attribute name="ancillary_variables" value="particle_number_concentration_amean_qc particle_number_concentration_amean_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="20260611080227" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, INOE_CPC" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="RO0010R" />
    <attribute name="ebas_platform_code" value="RO0010S" />
    <attribute name="ebas_station_name" value="RADO-Bucharest II" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <attribute name="ebas_station_setting" value="Suburban" />
    <attribute name="ebas_station_latitude" value="44.344" />
    <attribute name="ebas_station_longitude" value="26.012" />
    <attribute name="ebas_station_altitude" value="77.0 m" />
    <attribute name="ebas_measurement_latitude" value="44.344" />
    <attribute name="ebas_measurement_longitude" value="26.012" />
    <attribute name="ebas_measurement_altitude" value="77.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="particle_number_concentration" />
    <attribute name="ebas_unit" value="1/cm3" />
    <attribute name="ebas_matrix" value="pm10" />
    <attribute name="ebas_laboratory_code" value="RO03L" />
    <attribute name="ebas_instrument_type" value="cpc" />
    <attribute name="ebas_instrument_name" value="cpc_TSI_375010_INO" />
    <attribute name="ebas_instrument_manufacturer" value="TSI" />
    <attribute name="ebas_instrument_model" value="3750" />
    <attribute name="ebas_instrument_serial_number" value="375010233403" />
    <attribute name="ebas_method_ref" value="RO03L_CPC" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_inlet_type" value="Impactor--direct" />
    <attribute name="ebas_inlet_description" value="PM10 at ambient humidity inlet, Thermo, flow 16.6 l/min" />
    <attribute name="ebas_humidity_temperaure_control" value="Nafion dryer" />
    <attribute name="ebas_humidity_temperaure_control_description" value="sample dried to below 40% RH with nafion and absorption dryers operated with dry compressed air" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="0.0 1/cm3" />
    <attribute name="ebas_detection_limit_expl" value="Determined only by instrument counting statistics, no detection limit flag used" />
    <attribute name="ebas_measurement_uncertainty_expl" value="typical value of unit-to-unit variability" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Zero values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="RO03L, National Institute of R&amp;D for Optoelectronics, INOE, Remote Sensing Department, 409 Atomistilor Str., , 077125, &quot;Magurele, Ilfov&quot;, Romania" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCA" />
    <attribute name="ebas_framework_name" value="European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases, World Data Centre for Aerosols" />
    <attribute name="ebas_framework_description" value="ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre., The World Data Centre for Aerosols is the data repository and archive for microphysical, optical, and chemical properties of atmospheric aerosol of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, Markus.Fiebig@nilu.no" />
    <attribute name="ebas_originator" value="Dandocsi, Andrei, andrei.dandocsi@inoe.ro, National Institute of Research and Development for Optoelectronics, INOE2000, Remote Sensing Department, 409 Atomistilor street, Ilfov, RO 77125, Magurele, Romania" />
    <attribute name="ebas_submitter" value="Vasilescu, Jeni, jeni@inoe.ro, National Institute of Research and Development for Optoelectronics, INOE2000, Remote Sensing Department, 409 Atomistilor street, Ilfov, RO 77125, Magurele, Romania" />
    <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: ACTRIS, GAW-WDCA. Request acknowledgement details from data originator" />
  </variable>
  <variable name="particle_number_concentration_amean_qc" shape="particle_number_concentration_amean_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="particle_number_concentration_amean_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="particle_number_concentration_prec1587" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="number_concentration_of_pm10_aerosol_particles_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="1/cm3" />
    <attribute name="ancillary_variables" value="particle_number_concentration_prec1587_qc particle_number_concentration_prec1587_ebasmetadata" />
    <attribute name="cell_methods" value="time: percentile:15.87" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20260611080227" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, INOE_CPC" />
    <attribute name="ebas_statistics" value="percentile:15.87" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="RO0010R" />
    <attribute name="ebas_platform_code" value="RO0010S" />
    <attribute name="ebas_station_name" value="RADO-Bucharest II" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <attribute name="ebas_station_setting" value="Suburban" />
    <attribute name="ebas_station_latitude" value="44.344" />
    <attribute name="ebas_station_longitude" value="26.012" />
    <attribute name="ebas_station_altitude" value="77.0 m" />
    <attribute name="ebas_measurement_latitude" value="44.344" />
    <attribute name="ebas_measurement_longitude" value="26.012" />
    <attribute name="ebas_measurement_altitude" value="77.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="particle_number_concentration" />
    <attribute name="ebas_unit" value="1/cm3" />
    <attribute name="ebas_matrix" value="pm10" />
    <attribute name="ebas_laboratory_code" value="RO03L" />
    <attribute name="ebas_instrument_type" value="cpc" />
    <attribute name="ebas_instrument_name" value="cpc_TSI_375010_INO" />
    <attribute name="ebas_instrument_manufacturer" value="TSI" />
    <attribute name="ebas_instrument_model" value="3750" />
    <attribute name="ebas_instrument_serial_number" value="375010233403" />
    <attribute name="ebas_method_ref" value="RO03L_CPC" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_inlet_type" value="Impactor--direct" />
    <attribute name="ebas_inlet_description" value="PM10 at ambient humidity inlet, Thermo, flow 16.6 l/min" />
    <attribute name="ebas_humidity_temperaure_control" value="Nafion dryer" />
    <attribute name="ebas_humidity_temperaure_control_description" value="sample dried to below 40% RH with nafion and absorption dryers operated with dry compressed air" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="0.0 1/cm3" />
    <attribute name="ebas_detection_limit_expl" value="Determined only by instrument counting statistics, no detection limit flag used" />
    <attribute name="ebas_measurement_uncertainty_expl" value="typical value of unit-to-unit variability" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Zero values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="RO03L, National Institute of R&amp;D for Optoelectronics, INOE, Remote Sensing Department, 409 Atomistilor Str., , 077125, &quot;Magurele, Ilfov&quot;, Romania" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCA" />
    <attribute name="ebas_framework_name" value="European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases, World Data Centre for Aerosols" />
    <attribute name="ebas_framework_description" value="ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre., The World Data Centre for Aerosols is the data repository and archive for microphysical, optical, and chemical properties of atmospheric aerosol of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, Markus.Fiebig@nilu.no" />
    <attribute name="ebas_originator" value="Dandocsi, Andrei, andrei.dandocsi@inoe.ro, National Institute of Research and Development for Optoelectronics, INOE2000, Remote Sensing Department, 409 Atomistilor street, Ilfov, RO 77125, Magurele, Romania" />
    <attribute name="ebas_submitter" value="Vasilescu, Jeni, jeni@inoe.ro, National Institute of Research and Development for Optoelectronics, INOE2000, Remote Sensing Department, 409 Atomistilor street, Ilfov, RO 77125, Magurele, Romania" />
    <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: ACTRIS, GAW-WDCA. Request acknowledgement details from data originator" />
  </variable>
  <variable name="particle_number_concentration_prec1587_qc" shape="particle_number_concentration_prec1587_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="particle_number_concentration_prec1587_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="particle_number_concentration_perc8413" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="number_concentration_of_pm10_aerosol_particles_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="1/cm3" />
    <attribute name="ancillary_variables" value="particle_number_concentration_perc8413_qc particle_number_concentration_perc8413_ebasmetadata" />
    <attribute name="cell_methods" value="time: percentile:84.13" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20260611080227" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, INOE_CPC" />
    <attribute name="ebas_statistics" value="percentile:84.13" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_orig_time_res" value="1mn" />
    <attribute name="ebas_station_code" value="RO0010R" />
    <attribute name="ebas_platform_code" value="RO0010S" />
    <attribute name="ebas_station_name" value="RADO-Bucharest II" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <attribute name="ebas_station_setting" value="Suburban" />
    <attribute name="ebas_station_latitude" value="44.344" />
    <attribute name="ebas_station_longitude" value="26.012" />
    <attribute name="ebas_station_altitude" value="77.0 m" />
    <attribute name="ebas_measurement_latitude" value="44.344" />
    <attribute name="ebas_measurement_longitude" value="26.012" />
    <attribute name="ebas_measurement_altitude" value="77.0 m" />
    <attribute name="ebas_measurement_height" value="10.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="particle_number_concentration" />
    <attribute name="ebas_unit" value="1/cm3" />
    <attribute name="ebas_matrix" value="pm10" />
    <attribute name="ebas_laboratory_code" value="RO03L" />
    <attribute name="ebas_instrument_type" value="cpc" />
    <attribute name="ebas_instrument_name" value="cpc_TSI_375010_INO" />
    <attribute name="ebas_instrument_manufacturer" value="TSI" />
    <attribute name="ebas_instrument_model" value="3750" />
    <attribute name="ebas_instrument_serial_number" value="375010233403" />
    <attribute name="ebas_method_ref" value="RO03L_CPC" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_inlet_type" value="Impactor--direct" />
    <attribute name="ebas_inlet_description" value="PM10 at ambient humidity inlet, Thermo, flow 16.6 l/min" />
    <attribute name="ebas_humidity_temperaure_control" value="Nafion dryer" />
    <attribute name="ebas_humidity_temperaure_control_description" value="sample dried to below 40% RH with nafion and absorption dryers operated with dry compressed air" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="0.0 1/cm3" />
    <attribute name="ebas_detection_limit_expl" value="Determined only by instrument counting statistics, no detection limit flag used" />
    <attribute name="ebas_measurement_uncertainty_expl" value="typical value of unit-to-unit variability" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Zero values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="RO03L, National Institute of R&amp;D for Optoelectronics, INOE, Remote Sensing Department, 409 Atomistilor Str., , 077125, &quot;Magurele, Ilfov&quot;, Romania" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, GAW-WDCA" />
    <attribute name="ebas_framework_name" value="European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases, World Data Centre for Aerosols" />
    <attribute name="ebas_framework_description" value="ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre., The World Data Centre for Aerosols is the data repository and archive for microphysical, optical, and chemical properties of atmospheric aerosol of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Markus Fiebig" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, Markus.Fiebig@nilu.no" />
    <attribute name="ebas_originator" value="Dandocsi, Andrei, andrei.dandocsi@inoe.ro, National Institute of Research and Development for Optoelectronics, INOE2000, Remote Sensing Department, 409 Atomistilor street, Ilfov, RO 77125, Magurele, Romania" />
    <attribute name="ebas_submitter" value="Vasilescu, Jeni, jeni@inoe.ro, National Institute of Research and Development for Optoelectronics, INOE2000, Remote Sensing Department, 409 Atomistilor street, Ilfov, RO 77125, Magurele, Romania" />
    <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: ACTRIS, GAW-WDCA. Request acknowledgement details from data originator" />
  </variable>
  <variable name="particle_number_concentration_perc8413_qc" shape="particle_number_concentration_perc8413_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="particle_number_concentration_perc8413_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>
  <variable name="Location" shape="Location" type="String" />
</netcdf>
