High PM2.5 levels in Delhi-NCR largely independent of Punjab-Haryana crop fires
Peer-Reviewed Publication
Updates every hour. Last Updated: 24-Jun-2025 11:10 ET (24-Jun-2025 15:10 GMT/UTC)
International collaborative research led by Aakash Project* researchers at the Research Institute for Humanity and Nature (RIHN) show an unequivocal contribution of crop residue burning (CRB) to air pollution in the rural/semi-urban regions of Punjab and Haryana, and a relatively lower contribution than previously thought to the Delhi national capital region (NCR). We have installed 30 units of compact and useful PM2.5** in situ instrument with gas sensors (CUPI-Gs) and have continuously recorded air pollutants in 2022 and 2023. New analytical methods have been developed to assess and predict the formation and transport of air pollutants due to emissions from CRB.
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