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ACP | Articles | Volume 18, issue 24
Atmos. Chem. Phys., 18, 18063-18078, 2018
https://doi.org/10.5194/acp-18-18063-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Atmos. Chem. Phys., 18, 18063-18078, 2018
https://doi.org/10.5194/acp-18-18063-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 20 Dec 2018

Research article | 20 Dec 2018

Spatial and temporal changes in SO2 regimes over China in the recent decade and the driving mechanism

Ting Wang et al.
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Chai, F., Gao, J., Chen, Z., Wang, S., Zhang, Y., Zhang, J., Zhang, H., Yun, Y., and Ren, C.: Spatial and temporal variation of particulate matter and gaseous pollutants in 26 cities in China, J. Environ. Sci., 26, 75–82, 2014. 
Chan, C. K. and Yao, X.: Air pollution in mega cities in China, Atmos. Environ., 42, 1–42, 2008. 
Hannachi, A.: A primer for EOF analysis of climate data, University of Reading, Reading, 2004. 
Harada, Y., Kamahori, H., Kobayashi, C., Endo, H., Kobayashi, S., Ota, Y., Onoda, H., Onogi, K., Miyaoka, K., and Takahashi, K.: The JRA-55 Reanalysis: Representation of atmospheric circulation and climate variability, J. Meteorol. Soc. Jpn. Ser. II, 94, 269–302, 2016. 
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In the last decade, four temporal regimes of SO2 in China have been identified. After an initial rise, SO2 undergoes two sharp drops in 2007–2008 and 2014–2016, during which 5-year rebounding is sustained. Different mechanisms are tied to North and South China. The industrial emission is responsible for SO2 variation in North China, while in South China the meteorological conditions make a large contribution. The result is crucial to the understanding of SO2 changes and future polices.
In the last decade, four temporal regimes of SO2 in China have been identified. After an initial...
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