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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Latest update: 08 Aug 2022
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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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