Articles | Volume 14, issue 22
Atmos. Chem. Phys., 14, 12209–12223, 2014
https://doi.org/10.5194/acp-14-12209-2014
Atmos. Chem. Phys., 14, 12209–12223, 2014
https://doi.org/10.5194/acp-14-12209-2014

Research article 20 Nov 2014

Research article | 20 Nov 2014

Missing SO2 oxidant in the coastal atmosphere? – observations from high-resolution measurements of OH and atmospheric sulfur compounds

H. Berresheim et al.

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AR: Author's response | RR: Referee report | ED: Editor decision
AR by Franz Rohrer on behalf of the Authors (17 Aug 2014)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (18 Aug 2014) by Paul Monks
RR by Anonymous Referee #3 (29 Aug 2014)
ED: Reconsider after major revisions (29 Aug 2014) by Paul Monks
AR by Franz Rohrer on behalf of the Authors (04 Oct 2014)  Author's response    Manuscript
ED: Publish as is (07 Oct 2014) by Paul Monks
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Short summary
Sulfuric acid plays a major role in the formation of aerosol particles and clouds. Measurements at the west coast of Ireland reveal that oxidation of SO2 by OH explains only 20%, on average, of H2SO4 formation in coastal marine air. Additional sources may be (a) oxidation by Criegee intermediates produced photolytically and/or (b) formation from SO3 instead of SO2 in the oxidation of dimethyl sulfide, suggesting an important role of marine emissions in the self-cleaning power of the atmosphere.
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