Articles | Volume 22, issue 22
https://doi.org/10.5194/acp-22-14455-2022
https://doi.org/10.5194/acp-22-14455-2022
Research article
 | 
14 Nov 2022
Research article |  | 14 Nov 2022

What caused ozone pollution during the 2022 Shanghai lockdown? Insights from ground and satellite observations

Yue Tan and Tao Wang

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Latest update: 23 Jun 2024
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Short summary
We present a timely analysis of the effects of the recent lockdown in Shanghai on ground-level ozone (O3). Despite a huge reduction in human activity, O3 concentrations frequently exceeded the O3 air quality standard during the 2-month lockdown, implying that future emission reductions similar to those that occurred during the lockdown will not be sufficient to eliminate O3 pollution in many urban areas without the imposition of additional VOC controls or substantial decreases in NOx emissions.
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