Articles | Volume 26, issue 3
https://doi.org/10.5194/acp-26-1907-2026
© Author(s) 2026. 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-26-1907-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
06 Feb 2026
Research article |
| 06 Feb 2026
| 06 Feb 2026
Sensitivity of photochemical surface ozone formation regimes to emissions and meteorology in India
Gopalakrishna Pillai Gopikrishnan
CORAL, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
Lamont-Doherty Earth Observatory, Columbia University, New York 10964, NY, USA
Daniel M. Westervelt
CORRESPONDING AUTHOR
Lamont-Doherty Earth Observatory, Columbia University, New York 10964, NY, USA
Jayanarayanan Kuttippurath
CORRESPONDING AUTHOR
CORAL, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
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Short summary
This study examines the inverse effect of aerosol surface area and particulate matter (PM) reduction on air quality and atmospheric chemistry, particularly on surface ozone levels. Aerosols act as surfaces for the uptake of hydroxyl radicals (HO2), which are essential for controlling ozone formation. Reducing aerosols and PM may enhance surface ozone formation, thus worsening air quality. However, further efforts to decrease NOx emissions could mitigate this rise in surface ozone levels.
This study examines the inverse effect of aerosol surface area and particulate matter (PM)...
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