Articles | Volume 22, issue 7
https://doi.org/10.5194/acp-22-4853-2022
https://doi.org/10.5194/acp-22-4853-2022
Research article
 | 
12 Apr 2022
Research article |  | 12 Apr 2022

Insights into the significant increase in ozone during COVID-19 in a typical urban city of China

Kun Zhang, Zhiqiang Liu, Xiaojuan Zhang, Qing Li, Andrew Jensen, Wen Tan, Ling Huang, Yangjun Wang, Joost de Gouw, and Li Li

Model code and software

The Framework for 0-D Atmospheric Modeling (F0AM) v3.1 (https://github.com/AirChem/F0AM) Glenn M. Wolfe, Margaret R. Marvin, Sandra J. Roberts, Katherine R. Travis, and Jin Liao https://doi.org/10.5194/gmd-9-3309-2016

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Short summary
A significant increase in O3 concentrations was found during the lockdown period of COVID-19 in most areas of China. By field measurements coupled with machine learning, an observation-based model (OBM) and sensitivity analysis, we found the changes in the NOx / VOC ratio were a key reason for the significant rise in O3. To restrain O3 pollution, more efforts should be devoted to the control of anthropogenic OVOCs, alkenes and aromatics.
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