Articles | Volume 21, issue 5
https://doi.org/10.5194/acp-21-4169-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-21-4169-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
COVID-19 lockdowns highlight a risk of increasing ozone pollution in European urban areas
Empa, Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, 8600 Dübendorf, Switzerland
Wolfson Atmospheric Chemistry Laboratories, University of York, York, YO10 5DD, United Kingdom
James D. Lee
Wolfson Atmospheric Chemistry Laboratories, University of York, York, YO10 5DD, United Kingdom
Will S. Drysdale
Wolfson Atmospheric Chemistry Laboratories, University of York, York, YO10 5DD, United Kingdom
Alastair C. Lewis
Wolfson Atmospheric Chemistry Laboratories, University of York, York, YO10 5DD, United Kingdom
National Centre for Atmospheric Science, University of York, Heslington, York, YO10 5DD, United Kingdom
Christoph Hueglin
Empa, Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, 8600 Dübendorf, Switzerland
Lukas Emmenegger
Empa, Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, 8600 Dübendorf, Switzerland
David C. Carslaw
CORRESPONDING AUTHOR
Wolfson Atmospheric Chemistry Laboratories, University of York, York, YO10 5DD, United Kingdom
Ricardo Energy & Environment, Harwell, Oxfordshire, OX11 0QR, United Kingdom
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Latest update: 20 Nov 2024
Short summary
The changes in mobility across Europe due to the COVID-19 lockdowns had consequences for air quality. We compare what was experienced to estimates of "what would have been" without the lockdowns. Nitrogen dioxide (NO2), an important vehicle-sourced pollutant, decreased by a third. However, ozone (O3) increased in response to lower NO2. Because NO2 is decreasing over time, increases in O3 can be expected in European urban areas and will require management to avoid future negative outcomes.
The changes in mobility across Europe due to the COVID-19 lockdowns had consequences for air...
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