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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AR: Author's response | RR: Referee report | ED: Editor decision
AR by James Cash on behalf of the Authors (23 Apr 2021)  Author's response    Author's tracked changes    Manuscript
ED: Publish subject to minor revisions (review by editor) (02 May 2021) by Roya Bahreini
AR by James Cash on behalf of the Authors (10 May 2021)  Author's response    Author's tracked changes    Manuscript
ED: Publish as is (10 May 2021) by Roya Bahreini
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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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