Articles | Volume 21, issue 20
https://doi.org/10.5194/acp-21-15431-2021
https://doi.org/10.5194/acp-21-15431-2021
Research article
 | 
15 Oct 2021
Research article |  | 15 Oct 2021

Aerosol transport pathways and source attribution in China during the COVID-19 outbreak

Lili Ren, Yang Yang, Hailong Wang, Pinya Wang, Lei Chen, Jia Zhu, and Hong Liao

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Short summary
Due to the COVID-19 pandemic, human activities were strictly restricted in China. Even though anthropogenic aerosol emissions largely decreased, haze events still occurred. Our results shows that PM2.5 over the North China Plain is largely contributed by local sources. For other regions in China, PM2.5 is largely contributed from nonlocal sources. As emission reduction is a future goal, aerosol long-range transport and unfavorable meteorology are increasingly important to air quality.
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