Articles | Volume 21, issue 10
https://doi.org/10.5194/acp-21-7597-2021
© 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-21-7597-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Impacts of the COVID-19 lockdown on air pollution at regional and urban background sites in northern Italy
Jean-Philippe Putaud
CORRESPONDING AUTHOR
European Commission, Joint Research Centre (JRC), Ispra,
Italy
Luca Pozzoli
European Commission, Joint Research Centre (JRC), Ispra,
Italy
Enrico Pisoni
European Commission, Joint Research Centre (JRC), Ispra,
Italy
Sebastiao Martins Dos Santos
European Commission, Joint Research Centre (JRC), Ispra,
Italy
Friedrich Lagler
European Commission, Joint Research Centre (JRC), Ispra,
Italy
Guido Lanzani
Agenzia Regionale per la Protezione dell'Ambiente
(ARPA-Lombardia), Milan, Italy
Umberto Dal Santo
Agenzia Regionale per la Protezione dell'Ambiente
(ARPA-Lombardia), Milan, Italy
Augustin Colette
Milieux et Impacts sur le Vivant, Institut National de l'Environnement Industriel et des
Risques (INERIS), Verneuil-en-Halatte, France
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Latest update: 13 Dec 2024
Short summary
To determine the impact of the COVID lockdown on air quality in northern Italy, measurements of atmospheric pollutants (NO2, PM10, O3, NO, SO2 ) were compared to the output of a model ignoring the lockdown. We found that NO2 decreased on average by −30 % to −40 %. Unlike NO2, PM10 was not significantly affected due to the compensation of decreased emissions from traffic by increased emissions from domestic heating and/or by changes in atmospheric chemistry enhancing secondary aerosol formation.
To determine the impact of the COVID lockdown on air quality in northern Italy, measurements of...
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