Ozone pollution during the COVID-19 lockdown in the spring of 2020 over Europe, analysed from satellite observations, in situ measurements, and models

Cuesta, Juan; Costantino, Lorenzo; Beekmann, Matthias; Siour, Guillaume; Menut, Laurent; Bessagnet, Bertrand; Landi, Tony C.; Dufour, Gaëlle; Eremenko, Maxim

doi:https://doi.org/10.5194/acp-22-4471-2022

Articles | Volume 22, issue 7

https://doi.org/10.5194/acp-22-4471-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

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

https://doi.org/10.5194/acp-22-4471-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 22, issue 7

Research article

|

06 Apr 2022

Research article |

| 06 Apr 2022

Ozone pollution during the COVID-19 lockdown in the spring of 2020 over Europe, analysed from satellite observations, in situ measurements, and models

Juan Cuesta, Lorenzo Costantino, Matthias Beekmann, Guillaume Siour, Laurent Menut, Bertrand Bessagnet, Tony C. Landi, Gaëlle Dufour, and Maxim Eremenko

Supplement

https://doi.org/10.5194/acp-22-4471-2022-supplement

Data sets

IASI+GOME2 multispectral satellite observations of ozone Juan Cuesta and the IASI+GOME2 developing team at the LISA laboratory. Production and distribution by the AERIS French data centre. https://iasi.aeris-data.fr

Model code and software

CHIMERE chemistry transport model The CHIMERE developing team from the LMD and LISA laboratories https://www.lmd.polytechnique.fr/chimere/

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Short summary

We present the first comprehensive study integrating satellite observations of near-surface ozone pollution, surface in situ measurements, and a chemistry-transport model for quantifying the role of anthropogenic emission reductions during the COVID-19 lockdown in spring 2020. It confirms the occurrence of a net enhancement of ozone in central Europe and a reduction elsewhere, except for some hotspots, linked with the reduction of precursor emissions from Europe and the Northern Hemisphere.