Articles | Volume 21, issue 12
Atmos. Chem. Phys., 21, 9859–9886, 2021
https://doi.org/10.5194/acp-21-9859-2021
Atmos. Chem. Phys., 21, 9859–9886, 2021
https://doi.org/10.5194/acp-21-9859-2021

Research article 01 Jul 2021

Research article | 01 Jul 2021

Quantification of solid fuel combustion and aqueous chemistry contributions to secondary organic aerosol during wintertime haze events in Beijing

Yandong Tong et al.

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AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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AR: Author's response | RR: Referee report | ED: Editor decision
AR by Yandong Tong on behalf of the Authors (14 Apr 2021)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (14 Apr 2021) by James Allan
RR by Anonymous Referee #2 (18 May 2021)
RR by Anonymous Referee #1 (25 May 2021)
ED: Publish subject to technical corrections (25 May 2021) by James Allan
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Short summary
We investigate SOA sources and formation processes by a field deployment of the EESI-TOF-MS and L-TOF AMS in Beijing in late autumn and early winter. Our study shows that the sources and processes giving rise to haze events in Beijing are variable and seasonally dependent: (1) in the heating season, SOA formation is driven by oxidation of aromatics from solid fuel combustion; and (2) under high-NOx and RH conditions, aqueous-phase chemistry can be a major contributor to SOA formation.
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