Articles | Volume 22, issue 9
https://doi.org/10.5194/acp-22-6151-2022
© Author(s) 2022. 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-22-6151-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Tropospheric ozone production and chemical regime analysis during the COVID-19 lockdown over Europe
Clara M. Nussbaumer
CORRESPONDING AUTHOR
Department of Atmospheric Chemistry, Max Planck Institute for Chemistry, 55128 Mainz, Germany
Andrea Pozzer
Department of Atmospheric Chemistry, Max Planck Institute for Chemistry, 55128 Mainz, Germany
Ivan Tadic
Department of Atmospheric Chemistry, Max Planck Institute for Chemistry, 55128 Mainz, Germany
Lenard Röder
Department of Atmospheric Chemistry, Max Planck Institute for Chemistry, 55128 Mainz, Germany
Florian Obersteiner
Institute of Meteorology and Climate Research – Atmospheric Trace Gases and Remote Sensing (IMK-ASF), Karlsruhe Institute of Technology, 76021 Karlsruhe, Germany
Hartwig Harder
Department of Atmospheric Chemistry, Max Planck Institute for Chemistry, 55128 Mainz, Germany
Jos Lelieveld
Department of Atmospheric Chemistry, Max Planck Institute for Chemistry, 55128 Mainz, Germany
Climate and Atmosphere Research Center, The Cyprus Institute, Nicosia, Cyprus
Horst Fischer
Department of Atmospheric Chemistry, Max Planck Institute for Chemistry, 55128 Mainz, Germany
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Cited
11 citations as recorded by crossref.
- What controls ozone sensitivity in the upper tropical troposphere? C. Nussbaumer et al. 10.5194/acp-23-12651-2023
- Anomalies of O3, CO, C2H2, H2CO, and C2H6 detected with multiple ground-based Fourier-transform infrared spectrometers and assessed with model simulation in 2020: COVID-19 lockdowns versus natural variability I. Ortega et al. 10.1525/elementa.2023.00015
- Elucidating the mechanisms of rapid O3 increase in North China Plain during COVID-19 lockdown period R. Li et al. 10.1016/j.scitotenv.2023.167622
- An AI-Based Framework for Characterizing the Atmospheric Fate of Air Pollutants Within Diverse Environmental Settings N. Radić et al. 10.3390/atmos16020231
- Enhanced sulfur in the upper troposphere and lower stratosphere in spring 2020 L. Tomsche et al. 10.5194/acp-22-15135-2022
- Impact of Lockdowns on Air Pollution: Case Studies of Two Periods in 2022 in Guangzhou, China X. Zhao et al. 10.3390/atmos15091144
- Regularized principal spline functions to mitigate spatial confounding C. Zaccardi et al. 10.1093/biomtc/ujaf076
- What Is Polluting Delhi’s Air? A Review from 1990 to 2022 S. Guttikunda et al. 10.3390/su15054209
- Formaldehyde and hydroperoxide distribution around the Arabian Peninsula – evaluation of EMAC model results with ship-based measurements D. Dienhart et al. 10.5194/acp-23-119-2023
- Insights into the long-term (2005–2021) spatiotemporal evolution of summer ozone production sensitivity in the Northern Hemisphere derived with the Ozone Monitoring Instrument (OMI) M. Johnson et al. 10.5194/acp-24-10363-2024
- Changes in Gas-to-Aerosol-Phase Partitioning Ratio of Semi-Volatile Products Affect Secondary Organic Aerosol Formation from α-Pinene Photooxidation S. Liu et al. 10.1016/j.atmosenv.2025.121427
11 citations as recorded by crossref.
- What controls ozone sensitivity in the upper tropical troposphere? C. Nussbaumer et al. 10.5194/acp-23-12651-2023
- Anomalies of O3, CO, C2H2, H2CO, and C2H6 detected with multiple ground-based Fourier-transform infrared spectrometers and assessed with model simulation in 2020: COVID-19 lockdowns versus natural variability I. Ortega et al. 10.1525/elementa.2023.00015
- Elucidating the mechanisms of rapid O3 increase in North China Plain during COVID-19 lockdown period R. Li et al. 10.1016/j.scitotenv.2023.167622
- An AI-Based Framework for Characterizing the Atmospheric Fate of Air Pollutants Within Diverse Environmental Settings N. Radić et al. 10.3390/atmos16020231
- Enhanced sulfur in the upper troposphere and lower stratosphere in spring 2020 L. Tomsche et al. 10.5194/acp-22-15135-2022
- Impact of Lockdowns on Air Pollution: Case Studies of Two Periods in 2022 in Guangzhou, China X. Zhao et al. 10.3390/atmos15091144
- Regularized principal spline functions to mitigate spatial confounding C. Zaccardi et al. 10.1093/biomtc/ujaf076
- What Is Polluting Delhi’s Air? A Review from 1990 to 2022 S. Guttikunda et al. 10.3390/su15054209
- Formaldehyde and hydroperoxide distribution around the Arabian Peninsula – evaluation of EMAC model results with ship-based measurements D. Dienhart et al. 10.5194/acp-23-119-2023
- Insights into the long-term (2005–2021) spatiotemporal evolution of summer ozone production sensitivity in the Northern Hemisphere derived with the Ozone Monitoring Instrument (OMI) M. Johnson et al. 10.5194/acp-24-10363-2024
- Changes in Gas-to-Aerosol-Phase Partitioning Ratio of Semi-Volatile Products Affect Secondary Organic Aerosol Formation from α-Pinene Photooxidation S. Liu et al. 10.1016/j.atmosenv.2025.121427
Latest update: 29 Jul 2025
Short summary
The European COVID-19 lockdowns have significantly reduced the emission of primary pollutants such as NOx, which impacts the tropospheric photochemical processes and the abundance of O3. In this study, we present how the lockdowns have affected tropospheric trace gases and ozone production based on in situ observations and modeling simulations. We additionally show that the chemical regime shifted from a transition point to a NOx limitation in the upper troposphere.
The European COVID-19 lockdowns have significantly reduced the emission of primary pollutants...
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