Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 26, issue 18
Articles | Volume 26, issue 18
https://doi.org/10.5194/acp-26-13227-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-26-13227-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 26, issue 18
Research article
 | 
21 Sep 2026
Research article |  | 21 Sep 2026

Chemical characterization and source apportionment of carbonaceous aerosols during post-monsoon biomass burning and Diwali at an upwind site of Delhi

Vasu Singh, Dilip Ganguly, Jaswant Rathore, Lokesh Kumar Sahu, Ravi Kumar Kunchala, and Sagnik Dey

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Latest update: 22 Sep 2026
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Short summary
Each post-monsoon season, northern India faces severe air pollution, especially around Delhi, largely linked to crop residue burning and stagnant weather. We measured air pollution in Sonipat, northwest of Delhi, along the pathway of incoming smoke. Fine particle levels were extremely high and mainly made of carbon-rich particles from crop burning and solid fuels. Much of this pollution formed before reaching Delhi, showing regional sources drive the city’s severe haze.
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