Articles | Volume 22, issue 6
https://doi.org/10.5194/acp-22-4201-2022
https://doi.org/10.5194/acp-22-4201-2022
Research article
 | 
31 Mar 2022
Research article |  | 31 Mar 2022

Quantifying urban, industrial, and background changes in NO2 during the COVID-19 lockdown period based on TROPOMI satellite observations

Vitali Fioletov, Chris A. McLinden, Debora Griffin, Nickolay Krotkov, Fei Liu, and Henk Eskes

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Latest update: 01 Mar 2024
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Short summary
The COVID-19 lockdown had a large impact on anthropogenic emissions and particularly on nitrogen dioxide (NO2). A new method of isolation of background, urban, and industrial components in NO2 is applied to estimate the lockdown impact on each of them. From 16 March to 15 June 2020, urban NO2 declined by −18 % to −28 % in most regions of the world, while background NO2 typically declined by less than −10 %.
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