Articles | Volume 20, issue 2
https://doi.org/10.5194/acp-20-735-2020
https://doi.org/10.5194/acp-20-735-2020
Research article
 | 
22 Jan 2020
Research article |  | 22 Jan 2020

Sources and atmospheric dynamics of organic aerosol in New Delhi, India: insights from receptor modeling

Sahil Bhandari, Shahzad Gani, Kanan Patel, Dongyu S. Wang, Prashant Soni, Zainab Arub, Gazala Habib, Joshua S. Apte, and Lea Hildebrandt Ruiz

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Short summary
Delhi, India, is the most polluted megacity on the planet, posing acute challenges to public health. We report on source apportionment conducted on 15 months of highly time-resolved mass spectrometer data. We find that severe air pollution episodes are dominated by primary organic aerosol, while secondary organic aerosol dominates the fractional contributions year-round, suggesting the importance of sources as well as their atmospheric processing on pollution levels in Delhi.
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