Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 20, issue 1
Articles | Volume 20, issue 1
https://doi.org/10.5194/acp-20-267-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-20-267-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 20, issue 1
Research article
 | 
07 Jan 2020
Research article |  | 07 Jan 2020

The changing role of organic nitrates in the removal and transport of NOx

Paul S. Romer Present, Azimeh Zare, and Ronald C. Cohen

Data sets

Berkeley High Resolution (BEHR) OMI NO2 – Gridded pixels, monthly profiles J. Laughner, Q. Zhu, and R. C. Cohen https://doi.org/10.6078/D1RQ3G

ITCT 2002 WP-3D Data ITCT Science Team https://esrl.noaa.gov/csd/groups/csd7/measurements/2002ITCT/P3/DataDownload/

INTEX-A DC-8 Aircraft data INTEX-A Science Team https://doi.org/10.5067/asdcdaac/intexa/0008

INTEX-B DC-8 aircraft data INTEX-B Science Team https://doi.org/10.5067/asdcdaac/intexb/0008

BEARPEX 2007 field campaign data BEARPEX 07 Science Team https://doi.org/10.5281/zenodo.3593409

ARCTAS-B DC-8 aircraft data ARCTAS-B Science Team https://www-air.larc.nasa.gov/cgi-bin/ArcView/ arctas

BEARPEX 2009 field campaign data BEARPEX 09 Science Team https://doi.org/10.5281/zenodo.3593413

CALNEX 2010 WP-3D data CALNEX Science Team https://esrl.noaa.gov/csd/groups/csd7/measurements/2010calnex/P3/DataDownload/

CALNEX 2010 Bakersfield site data CALNEX Science Team https://esrl.noaa.gov/csd/groups/csd7/measurements/2010calnex/Bakersfield/DataDownload/

DC3 Field Campaign Data from DC-8 aircraft DC3 Science Team https://doi.org/10.5067/aircraft/dc3/dc8/aerosol-tracegas

SOAS 2013 Centreville site data SOAS Science Team https://esrl.noaa.gov/csd/groups/csd7/measurements/2013senex/Ground/DataDownload/

SEAC4RS field campaign data SEAC4RS Science Team https://www-air.larc.nasa.gov/cgi-bin/ArcView/seac4rs

FRAPPÉ C-130 aircraft data FRAPPÉ Science Team https://www-air.larc.nasa.gov/cgi-bin/ArcView/discover-aq.co-2014?C130=1

KorUS-AQ Airborne Mission KORUS-AQ Science Team https://doi.org/10.5067/Suborbital/KORUSAQ/DATA01

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Short summary
The chemistry of nitrogen oxides (NOx) affects both air quality and climate through its role in the production of ozone and secondary aerosols. We find that recent changes in emissions have caused a significant shift in the chemical loss of NOx away from direct production of HNO3 and towards production of organic nitrates. This shift is leading to a flatter distribution of NOx across the United States and helping transform air pollution from a local issue into a broader regional concern.
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