Articles | Volume 18, issue 10
https://doi.org/10.5194/acp-18-7573-2018
https://doi.org/10.5194/acp-18-7573-2018
Research article
 | 
31 May 2018
Research article |  | 31 May 2018

Climatological study of the Boundary-layer air Stagnation Index for China and its relationship with air pollution

Qianqian Huang, Xuhui Cai, Jian Wang, Yu Song, and Tong Zhu

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Cited articles

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Bressi, M., Sciare, J., Ghersi, V., Bonnaire, N., Nicolas, J. B., Petit, J. E., Moukhtar, S., Rosso, A., Mihalopoulos, N., and Feron, A.: A one-year comprehensive chemical characterisation of fine aerosol (PM2.5) at urban, suburban and rural background sites in the region of Paris (France), Atmos. Chem. Phys., 13, 7825–7844, https://doi.org/10.5194/acp-13-7825-2013, 2013. 
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Short summary
Air stagnation index is a vital meteorological measure of the atmosphere's ability to dilute air pollutants. We propose a Boundary-layer air Stagnation Index (BSI) based on daily maximal ventilation, real latent instability and precipitation. The BSI is positively correlated with API during 2000–2012, tracks the day-by-day variation of PM2.5 concentration during January 2013 in Beijing well, and successfully represents the improved air quality during November and December in 2017.
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