Articles | Volume 20, issue 24
https://doi.org/10.5194/acp-20-15743-2020
https://doi.org/10.5194/acp-20-15743-2020
Research article
 | 
18 Dec 2020
Research article |  | 18 Dec 2020

UK surface NO2 levels dropped by 42 % during the COVID-19 lockdown: impact on surface O3

James D. Lee, Will S. Drysdale, Doug P. Finch, Shona E. Wilde, and Paul I. Palmer

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Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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AR: Author's response | RR: Referee report | ED: Editor decision
AR by James Lee on behalf of the Authors (16 Oct 2020)  Author's response    Manuscript
ED: Publish subject to technical corrections (10 Nov 2020) by Astrid Kiendler-Scharr (deceased)
AR by James Lee on behalf of the Authors (11 Nov 2020)  Author's response    Manuscript
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Short summary
Efforts to prevent the COVID-19 virus spreading across the globe have included travel restrictions and the closure of workplaces, leading to a significant drop in emissions of primary air pollutants. This provides for a unique opportunity to examine how air pollutant concentrations respond to an abrupt and prolonged reduction. We examine how NO2 and O3 have been affected at several urban measurement sites in the UK. We look at the change in NO2 compared to previous years and the effect on O3.
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