Articles | Volume 18, issue 8
Atmos. Chem. Phys., 18, 5549–5565, 2018
https://doi.org/10.5194/acp-18-5549-2018
Atmos. Chem. Phys., 18, 5549–5565, 2018
https://doi.org/10.5194/acp-18-5549-2018

Research article 24 Apr 2018

Research article | 24 Apr 2018

Novel pathway of SO2 oxidation in the atmosphere: reactions with monoterpene ozonolysis intermediates and secondary organic aerosol

Jianhuai Ye et al.

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AR: Author's response | RR: Referee report | ED: Editor decision
AR by Jianhuai Ye on behalf of the Authors (20 Feb 2018)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (08 Mar 2018) by Robert McLaren
RR by Anonymous Referee #2 (21 Mar 2018)
ED: Publish as is (23 Mar 2018) by Robert McLaren
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Short summary
Synergistic effects between SOA formation and SO2 oxidation through Criegee chemistry and reactive uptake by organic peroxides were observed. The relative importance of these two pathways (Criegee vs. peroxide) varies with relative humidity. The latter SO2 loss mechanism to organic peroxides in SOA has not previously been identified. Our results suggest a new pathway of atmospheric SO2 oxidation, which may contribute to the missing mechanisms of high-sulfate production in the polluted areas.
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