Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 18, issue 8
Articles | Volume 18, issue 8
https://doi.org/10.5194/acp-18-5549-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-18-5549-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 18, issue 8
Research article
 | Highlight paper
 | 
24 Apr 2018
Research article | Highlight paper |  | 24 Apr 2018

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

Jianhuai Ye, Jonathan P. D. Abbatt, and Arthur W. H. Chan

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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 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
AR by Jianhuai Ye on behalf of the Authors (28 Mar 2018)  Manuscript 
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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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