Articles | Volume 16, issue 7
https://doi.org/10.5194/acp-16-4605-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/acp-16-4605-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| Highlight paper
| 
13 Apr 2016
Research article | Highlight paper |
| 13 Apr 2016
Aura OMI observations of regional SO2 and NO2 pollution changes from 2005 to 2015
Nickolay A. Krotkov
CORRESPONDING AUTHOR
Atmospheric Chemistry and Dynamics Laboratory, NASA
Goddard Space Flight Center, Greenbelt, Maryland, USA
Chris A. McLinden
Air Quality Research Division, Environment Canada,
Toronto, Canada
Earth System Science Interdisciplinary Center, University
of Maryland, College Park, USA
Atmospheric Chemistry and Dynamics Laboratory, NASA
Goddard Space Flight Center, Greenbelt, Maryland, USA
Lok N. Lamsal
GESTAR, Universities Space Research Association, Columbia,
Maryland, USA
Atmospheric Chemistry and Dynamics Laboratory, NASA
Goddard Space Flight Center, Greenbelt, Maryland, USA
Edward A. Celarier
GESTAR, Universities Space Research Association, Columbia,
Maryland, USA
Atmospheric Chemistry and Dynamics Laboratory, NASA
Goddard Space Flight Center, Greenbelt, Maryland, USA
Sergey V. Marchenko
Science Systems and Applications, Inc., Lanham, Maryland,
USA
Atmospheric Chemistry and Dynamics Laboratory, NASA
Goddard Space Flight Center, Greenbelt, Maryland, USA
William H. Swartz
Applied Physics Laboratory, Johns Hopkins University,
Laurel, Maryland, USA
Atmospheric Chemistry and Dynamics Laboratory, NASA
Goddard Space Flight Center, Greenbelt, Maryland, USA
Eric J. Bucsela
SRI International, Menlo Park, California,
USA
Joanna Joiner
Atmospheric Chemistry and Dynamics Laboratory, NASA
Goddard Space Flight Center, Greenbelt, Maryland, USA
Bryan N. Duncan
Atmospheric Chemistry and Dynamics Laboratory, NASA
Goddard Space Flight Center, Greenbelt, Maryland, USA
K. Folkert Boersma
Meteorology and Air Quality Group, Wageningen University,
the Netherlands
Royal Netherlands Meteorological Institute, De
Bilt, the Netherlands
J. Pepijn Veefkind
Royal Netherlands Meteorological Institute, De
Bilt, the Netherlands
University of Technology Delft, Delft, the
Netherlands
Pieternel F. Levelt
Royal Netherlands Meteorological Institute, De
Bilt, the Netherlands
University of Technology Delft, Delft, the
Netherlands
Vitali E. Fioletov
Air Quality Research Division, Environment Canada,
Toronto, Canada
Russell R. Dickerson
Department of Atmospheric and Oceanic Science, University
of Maryland, College Park, Maryland, USA
Department of Atmospheric and Oceanic Science, University
of Maryland, College Park, Maryland, USA
Zifeng Lu
Energy Systems Division, Argonne National Laboratory,
Argonne, IL, USA
David G. Streets
Energy Systems Division, Argonne National Laboratory,
Argonne, IL, USA
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Latest update: 25 Nov 2025
Short summary
We examine changes in SO2 and NO2 over the world's most polluted regions during the first decade of Aura OMI observations. Over the eastern US, both NO2 and SO2 levels decreased by 40 % and 80 %, respectively. OMI confirmed large reductions in SO2 over eastern Europe's largest coal power plants. The North China Plain has the world's most severe SO2 pollution, but a decreasing trend been observed since 2011, with a 50 % reduction in 2012–2014. India's SO2 and NO2 levels are growing at a fast pace.
We examine changes in SO2 and NO2 over the world's most polluted regions during the first decade...
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