Articles | Volume 15, issue 5
Research article
10 Mar 2015
Research article |  | 10 Mar 2015

Observations and modeling of air quality trends over 1990–2010 across the Northern Hemisphere: China, the United States and Europe

J. Xing, R. Mathur, J. Pleim, C. Hogrefe, C.-M. Gan, D. C. Wong, C. Wei, R. Gilliam, and G. Pouliot


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by JIA XING on behalf of the Authors (14 Jan 2015)  Author's response    Manuscript
ED: Publish subject to technical corrections (10 Feb 2015) by Yves Balkanski
AR by JIA XING on behalf of the Authors (10 Feb 2015)  Author's response    Manuscript
Short summary
Model-simulated air quality trends over the past 2 decades largely agree with those derived from observations. In the relative amounts of VOC and NOx emission controls in different regions across the northern hemisphere have led to significantly different trends in tropospheric O3. Differences in the historical changes in the relative amounts of NH3, NOx and SO2 emissions also impact the trends in inorganic particulate matter amounts and composition in China, the U.S. and Europe.
Final-revised paper