Articles | Volume 21, issue 10
https://doi.org/10.5194/acp-21-7723-2021
https://doi.org/10.5194/acp-21-7723-2021
Research article
 | 
20 May 2021
Research article |  | 20 May 2021

Variability of NO2 concentrations over China and effect on air quality derived from satellite and ground-based observations

Cheng Fan, Zhengqiang Li, Ying Li, Jiantao Dong, Ronald van der A, and Gerrit de Leeuw

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Cited articles

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Short summary
Emission control policy in China has resulted in the decrease of nitrogen dioxide concentrations, which however leveled off and stabilized in recent years, as shown from satellite data. The effects of the further emission reduction during the COVID-19 lockdown in 2020 resulted in an initial improvement of air quality, which, however, was offset by chemical and meteorological effects. The study shows the regional dependence over east China, and results have a wider application than China only.
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