Articles | Volume 20, issue 23
Atmos. Chem. Phys., 20, 14873–14887, 2020
https://doi.org/10.5194/acp-20-14873-2020
Atmos. Chem. Phys., 20, 14873–14887, 2020
https://doi.org/10.5194/acp-20-14873-2020

Research article 03 Dec 2020

Research article | 03 Dec 2020

The warming Tibetan Plateau improves winter air quality in the Sichuan Basin, China

Shuyu Zhao et al.

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Cited articles

Bei, N., Li, G., Huang, R.-J., Cao, J., Meng, N., Feng, T., Liu, S., Zhang, T., Zhang, Q., and Molina, L. T.: Typical synoptic situations and their impacts on the wintertime air pollution in the Guanzhong basin, China, Atmos. Chem. Phys., 16, 7373–7387, https://doi.org/10.5194/acp-16-7373-2016, 2016. 
Bei, N., Zhao, L., Xiao, B., Meng, N., and Feng, T.: Impacts of local circulations on the wintertime air pollution in the Guanzhong Basin, China, Sci. Total Environ., 592, 373–390, https://doi.org/10.1016/j.scitotenv.2017.02.151, 2017. 
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Cai, W., Li, K., Liao, H., Wang, H., and Wu, L.: Weather conditions conducive to Beijing severe haze more frequent under climate change, Nat. Clim. Change, 7, 257–262, https://doi.org/10.1038/nclimate3249, 2017. 
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Short summary
The Tibetan Plateau has been experiencing a rapid warming during the last 40 years, particularly in winter. The warming leads to an increase in the planetary boundary layer height and a decrease in the relative humidity in the Sichuan Basin, causing a reduction of PM2.5 concentration by 17.5 % (~25.1 μg m−3), of which the reduction in secondary aerosols is 19.7 μg m−3. These findings indicate that the warming plateau plays an important role in mitigating air quality in downstream.
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