Articles | Volume 21, issue 13
Atmos. Chem. Phys., 21, 10133–10158, 2021
https://doi.org/10.5194/acp-21-10133-2021
Atmos. Chem. Phys., 21, 10133–10158, 2021
https://doi.org/10.5194/acp-21-10133-2021
Research article
07 Jul 2021
Research article | 07 Jul 2021

Seasonal analysis of submicron aerosol in Old Delhi using high-resolution aerosol mass spectrometry: chemical characterisation, source apportionment and new marker identification

James M. Cash et al.

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Latest update: 29 Nov 2022
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Short summary
We present the first real-time composition of submicron particulate matter (PM1) in Old Delhi using high-resolution aerosol mass spectrometry. Seasonal analysis shows peak concentrations occur during the post-monsoon, and novel-tracers reveal the largest sources are a combination of local open and regional crop residue burning. Strong links between increased chloride aerosol concentrations and burning sources of PM1 suggest burning sources are responsible for the post-monsoon chloride peak.
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