Articles | Volume 21, issue 3
https://doi.org/10.5194/acp-21-1581-2021
https://doi.org/10.5194/acp-21-1581-2021
Research article
 | 
04 Feb 2021
Research article |  | 04 Feb 2021

Evident PM2.5 drops in the east of China due to the COVID-19 quarantine measures in February

Zhicong Yin, Yijia Zhang, Huijun Wang, and Yuyan Li

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Latest update: 13 Jun 2024
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Short summary
It is a must to disentangle the contributions of stable meteorology from the effects of the COVID-19 lockdown. A 59 % decline in PM2.5 related to the COVID-19 pandemic was found in North China. The COVID-19 quarantine measures decreased the PM2.5 in the Yangtze River Delta by 72 %. In Hubei Province where most pneumonia cases were confirmed, the impact of the total emission reduction (72 %) evidently exceeded the rising percentage of PM2.5 driven by meteorology (13 %).
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