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

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

doi:https://doi.org/10.5194/acp-20-735-2020

Articles | Volume 20, issue 2

https://doi.org/10.5194/acp-20-735-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-20-735-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 20, issue 2

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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Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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RC1: 'Reviewer comments', Anonymous Referee #2, 22 Jul 2019
RC2: 'Review of Bhandari et al.', Anonymous Referee #1, 26 Sep 2019
AC1: 'Final author comment', Lea Hildebrandt Ruiz, 07 Nov 2019

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

AR by Lea Hildebrandt Ruiz on behalf of the Authors (02 Dec 2019) Author's response Manuscript

ED: Publish as is (06 Dec 2019) by Stefania Gilardoni

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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.