Nature Communications (Apr 2024)
Local incomplete combustion emissions define the PM2.5 oxidative potential in Northern India
- Deepika Bhattu,
- Sachchida Nand Tripathi,
- Himadri Sekhar Bhowmik,
- Vaios Moschos,
- Chuan Ping Lee,
- Martin Rauber,
- Gary Salazar,
- Gülcin Abbaszade,
- Tianqu Cui,
- Jay G. Slowik,
- Pawan Vats,
- Suneeti Mishra,
- Vipul Lalchandani,
- Rangu Satish,
- Pragati Rai,
- Roberto Casotto,
- Anna Tobler,
- Varun Kumar,
- Yufang Hao,
- Lu Qi,
- Peeyush Khare,
- Manousos Ioannis Manousakas,
- Qiyuan Wang,
- Yuemei Han,
- Jie Tian,
- Sophie Darfeuil,
- Mari Cruz Minguillon,
- Christoph Hueglin,
- Sébastien Conil,
- Neeraj Rastogi,
- Atul Kumar Srivastava,
- Dilip Ganguly,
- Sasa Bjelic,
- Francesco Canonaco,
- Jürgen Schnelle-Kreis,
- Pamela A. Dominutti,
- Jean-Luc Jaffrezo,
- Sönke Szidat,
- Yang Chen,
- Junji Cao,
- Urs Baltensperger,
- Gaëlle Uzu,
- Kaspar R. Daellenbach,
- Imad El Haddad,
- André S. H. Prévôt
Affiliations
- Deepika Bhattu
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute
- Sachchida Nand Tripathi
- Department of Civil Engineering & Department of Sustainable Energy Engineering, Indian Institute of Technology Kanpur
- Himadri Sekhar Bhowmik
- Department of Civil Engineering & Department of Sustainable Energy Engineering, Indian Institute of Technology Kanpur
- Vaios Moschos
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute
- Chuan Ping Lee
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute
- Martin Rauber
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern
- Gary Salazar
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern
- Gülcin Abbaszade
- Comprehensive Molecular Analytics (CMA), Department Environmental Health, Helmholtz Zentrum München
- Tianqu Cui
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute
- Jay G. Slowik
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute
- Pawan Vats
- Centre for Atmospheric Sciences, Indian Institute of Technology Delhi
- Suneeti Mishra
- Department of Civil Engineering & Department of Sustainable Energy Engineering, Indian Institute of Technology Kanpur
- Vipul Lalchandani
- Department of Civil Engineering & Department of Sustainable Energy Engineering, Indian Institute of Technology Kanpur
- Rangu Satish
- Geosciences Division, Physical Research Laboratory
- Pragati Rai
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute
- Roberto Casotto
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute
- Anna Tobler
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute
- Varun Kumar
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute
- Yufang Hao
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute
- Lu Qi
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute
- Peeyush Khare
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute
- Manousos Ioannis Manousakas
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute
- Qiyuan Wang
- Institute of Earth Environment, Chinese Academy of Sciences
- Yuemei Han
- Institute of Earth Environment, Chinese Academy of Sciences
- Jie Tian
- Institute of Earth Environment, Chinese Academy of Sciences
- Sophie Darfeuil
- University Grenoble Alpes, IRD, CNRS, INRAE, Grenoble INP*, IGE (Institute of Environmental Geosciences)
- Mari Cruz Minguillon
- Institute of Environmental Assessment and Water Research (IDAEA-CSIC)
- Christoph Hueglin
- Laboratory for Air Pollution and Environmental Technology, Swiss Federal Laboratories for Materials Science and Technology (Empa)
- Sébastien Conil
- ANDRA DRD/GES Observatoire Pérenne de l’Environnement
- Neeraj Rastogi
- Geosciences Division, Physical Research Laboratory
- Atul Kumar Srivastava
- Indian Institute of Tropical Meteorology, Ministry of Earth Sciences
- Dilip Ganguly
- Centre for Atmospheric Sciences, Indian Institute of Technology Delhi
- Sasa Bjelic
- Biogenergy and Catalysis Laboratory, Paul Scherrer Institute
- Francesco Canonaco
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute
- Jürgen Schnelle-Kreis
- Comprehensive Molecular Analytics (CMA), Department Environmental Health, Helmholtz Zentrum München
- Pamela A. Dominutti
- University Grenoble Alpes, IRD, CNRS, INRAE, Grenoble INP*, IGE (Institute of Environmental Geosciences)
- Jean-Luc Jaffrezo
- University Grenoble Alpes, IRD, CNRS, INRAE, Grenoble INP*, IGE (Institute of Environmental Geosciences)
- Sönke Szidat
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern
- Yang Chen
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences
- Junji Cao
- Institute of Atmospheric Physics, Chinese Academy of Sciences
- Urs Baltensperger
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute
- Gaëlle Uzu
- University Grenoble Alpes, IRD, CNRS, INRAE, Grenoble INP*, IGE (Institute of Environmental Geosciences)
- Kaspar R. Daellenbach
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute
- Imad El Haddad
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute
- André S. H. Prévôt
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute
- DOI
- https://doi.org/10.1038/s41467-024-47785-5
- Journal volume & issue
-
Vol. 15,
no. 1
pp. 1 – 13
Abstract
Abstract The oxidative potential (OP) of particulate matter (PM) is a major driver of PM-associated health effects. In India, the emission sources defining PM-OP, and their local/regional nature, are yet to be established. Here, to address this gap we determine the geographical origin, sources of PM, and its OP at five Indo-Gangetic Plain sites inside and outside Delhi. Our findings reveal that although uniformly high PM concentrations are recorded across the entire region, local emission sources and formation processes dominate PM pollution. Specifically, ammonium chloride, and organic aerosols (OA) from traffic exhaust, residential heating, and oxidation of unsaturated vapors from fossil fuels are the dominant PM sources inside Delhi. Ammonium sulfate and nitrate, and secondary OA from biomass burning vapors, are produced outside Delhi. Nevertheless, PM-OP is overwhelmingly driven by OA from incomplete combustion of biomass and fossil fuels, including traffic. These findings suggest that addressing local inefficient combustion processes can effectively mitigate PM health exposure in northern India.
