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Title: Significant increase of summertime ozone at Mount Tai in Central Eastern China
Authors: Sun, L
Xue, L
Wang, T 
Gao, J
Ding, A
Cooper, OR
Lin, M
Xu, P
Wang, Z 
Wang, X
Wen, L
Zhu, Y
Chen, T
Yang, L
Wang, Y
Chen, J
Wang, W
Issue Date: 2016
Publisher: Copernicus GmbH
Source: Atmospheric chemistry and physics, 2016, v. 16, no. 16, p. 10637-10650 How to cite?
Journal: Atmospheric chemistry and physics 
Abstract: Tropospheric ozone (O3) is a trace gas playing important roles in atmospheric chemistry, air quality and climate change. In contrast to North America and Europe, long-term measurements of surface O3 are very limited in China. We compile available O3 observations at Mt. Tai - the highest mountain over the North China Plain - during 2003-2015 and analyze the decadal change of O3 and its sources. A linear regression analysis shows that summertime O3 measured at Mt. Tai has increased significantly by 1.7ppbv yr-1 for June and 2.1ppbv yr-1 for the July-August average. The observed increase is supported by a global chemistry-climate model hindcast (GFDL-AM3) with O3 precursor emissions varying from year to year over 1980-2014. Analysis of satellite data indicates that the O3 increase was mainly due to the increased emissions of O3 precursors, in particular volatile organic compounds (VOCs). An important finding is that the emissions of nitrogen oxides (NOx) have diminished since 2011, but the increase of VOCs appears to have enhanced the ozone production efficiency and contributed to the observed O3 increase in central eastern China. We present evidence that controlling NOx alone, in the absence of VOC controls, is not sufficient to reduce regional O3 levels in North China in a short period.
ISSN: 1680-7316
EISSN: 1680-7324
DOI: 10.5194/acp-16-10637-2016
Rights: © Author(s) 2016. This is an open access article distributed under the Creative Commons Attribution 3.0 License (, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
The following publication: Sun, L., Xue, L., Wang, T., Gao, J., Ding, A., Cooper, O. R., Lin, M., Xu, P., Wang, Z., Wang, X., Wen, L., Zhu, Y., Chen, T., Yang, L., Wang, Y., Chen, J., and Wang, W.: Significant increase of summertime ozone at Mount Tai in Central Eastern China, Atmos. Chem. Phys., 16, 10637-10650 is available at, 2016.
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