Articles | Volume 20, issue 24
Atmos. Chem. Phys., 20, 15743–15759, 2020
https://doi.org/10.5194/acp-20-15743-2020

Special issue: Quantifying the impacts of stay-at-home policies on atmospheric...

Atmos. Chem. Phys., 20, 15743–15759, 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 et al.

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Latest update: 16 Oct 2021
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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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