Fingerprints of the COVID-19 economic downturn and recovery on ozone anomalies at high-elevation sites in North America and western Europe.

ABSTRACT: With a few exceptions, most studies on tropospheric ozone (O₃) variability during and following the COrona VIrus Disease (COVID-19) economic downturn focused on high-emission regions or urban environments. In this work, we investigated the impact of the societal restriction measures during the COVID-19 pandemic on surface O₃ at several high-elevation sites across North America and western Europe. Monthly O₃ anomalies were calculated for 2020 and 2021, with respect to the baseline period 2000-2019, to explore the impact of the economic downturn initiated in 2020 and its recovery in 2021. In total, 41 high-elevation sites were analyzed: 5 rural or mountaintop stations in western Europe, 19 rural sites in the western US, 4 sites in the western US downwind of h

SUBMITTER: Putero D 

PROVIDER: S-EPMC12181938 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature