Articles | Volume 24, issue 14
https://doi.org/10.5194/acp-24-8225-2024
© Author(s) 2024. 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-24-8225-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Changes in South American surface ozone trends: exploring the influences of precursors and extreme events
Rodrigo J. Seguel
CORRESPONDING AUTHOR
Center for Climate and Resilience Research (CR)², Santiago, Chile
Department of Geophysics, Faculty of Physical and Mathematical Sciences, University of Chile, Santiago, Chile
Lucas Castillo
Center for Climate and Resilience Research (CR)², Santiago, Chile
Department of Geophysics, Faculty of Physical and Mathematical Sciences, University of Chile, Santiago, Chile
Charlie Opazo
Center for Climate and Resilience Research (CR)², Santiago, Chile
Department of Geophysics, Faculty of Physical and Mathematical Sciences, University of Chile, Santiago, Chile
Néstor Y. Rojas
Department of Chemical and Environmental Engineering, Universidad Nacional de Colombia, Bogotá, Colombia
Thiago Nogueira
Departamento de Saúde Ambiental, Faculdade de Saúde Pública, Universidade de São Paulo, São Paulo, Brazil
María Cazorla
Instituto de Investigaciones Atmosféricas, Universidad San Francisco de Quito USFQ, Quito, Ecuador
Mario Gavidia-Calderón
Departamento de Ciências Atmosféricas, Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Universidade de São Paulo, São Paulo, Brazil
Laura Gallardo
Center for Climate and Resilience Research (CR)², Santiago, Chile
Department of Geophysics, Faculty of Physical and Mathematical Sciences, University of Chile, Santiago, Chile
René Garreaud
Center for Climate and Resilience Research (CR)², Santiago, Chile
Department of Geophysics, Faculty of Physical and Mathematical Sciences, University of Chile, Santiago, Chile
Tomás Carrasco-Escaff
Center for Climate and Resilience Research (CR)², Santiago, Chile
Yasin Elshorbany
School of Geosciences, College of Arts and Sciences, University of South Florida, St. Petersburg, Florida, USA
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Cited
8 citations as recorded by crossref.
- Tropical tropospheric ozone distribution and trends from in situ and satellite data A. Gaudel et al. 10.5194/acp-24-9975-2024
- Surface ozone trend variability across the United States and the impact of heat waves (1990–2023) K. Chang et al. 10.5194/acp-25-5101-2025
- Occurrence and Atmospheric Patterns Associated with Individual and Compound Heatwave–Ozone Events in São Paulo Megacity V. Carvalho et al. 10.3390/atmos16070822
- Current Status, Trends, and Future Directions in Chilean Air Quality: A Data-Driven Perspective K. Basoa et al. 10.3390/atmos16060733
- Comparative ozone production sensitivity to NOx and VOCs in Quito, Ecuador, and Santiago, Chile M. Cazorla et al. 10.5194/acp-25-7087-2025
- Performance evaluation of UKESM1 for surface ozone across the pan-tropics F. Brown et al. 10.5194/acp-24-12537-2024
- Air quality modeling intercomparison and multiscale ensemble chain for Latin America J. Pachón et al. 10.5194/gmd-17-7467-2024
- Total ozone content in southeastern South America: A statistical analysis of 45 years of satellite data A. Laguarda & M. Osorio 10.1016/j.jastp.2025.106468
8 citations as recorded by crossref.
- Tropical tropospheric ozone distribution and trends from in situ and satellite data A. Gaudel et al. 10.5194/acp-24-9975-2024
- Surface ozone trend variability across the United States and the impact of heat waves (1990–2023) K. Chang et al. 10.5194/acp-25-5101-2025
- Occurrence and Atmospheric Patterns Associated with Individual and Compound Heatwave–Ozone Events in São Paulo Megacity V. Carvalho et al. 10.3390/atmos16070822
- Current Status, Trends, and Future Directions in Chilean Air Quality: A Data-Driven Perspective K. Basoa et al. 10.3390/atmos16060733
- Comparative ozone production sensitivity to NOx and VOCs in Quito, Ecuador, and Santiago, Chile M. Cazorla et al. 10.5194/acp-25-7087-2025
- Performance evaluation of UKESM1 for surface ozone across the pan-tropics F. Brown et al. 10.5194/acp-24-12537-2024
- Air quality modeling intercomparison and multiscale ensemble chain for Latin America J. Pachón et al. 10.5194/gmd-17-7467-2024
- Total ozone content in southeastern South America: A statistical analysis of 45 years of satellite data A. Laguarda & M. Osorio 10.1016/j.jastp.2025.106468
Latest update: 13 Jul 2025
Short summary
Trends of surface ozone were examined across South America. Our findings indicate that ozone trends in major South American cities either increase or remain steady, with no signs of decline. The upward trends can be attributed to chemical regimes that efficiently convert nitric oxide into nitrogen dioxide. Additionally, our results suggest a climate penalty for ozone driven by meteorological conditions that favor wildfire propagation in Chile and extensive heat waves in southern Brazil.
Trends of surface ozone were examined across South America. Our findings indicate that ozone...
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