Articles | Volume 19, issue 6
Research article
25 Mar 2019
Research article |  | 25 Mar 2019

Seasonality in the Δ33S measured in urban aerosols highlights an additional oxidation pathway for atmospheric SO2

David Au Yang, Pierre Cartigny, Karine Desboeufs, and David Widory


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Lorena Grabowski on behalf of the Authors (27 Feb 2019)  Author's response
ED: Publish as is (28 Feb 2019) by Eliza Harris
Short summary
Sulfates present in urban aerosols collected worldwide usually exhibit 33S-anomalies whose origin remains unclear. Besides, the sulfate concentration is not very well modelled nowadays, which, coupled with the isotopic composition anomaly on the 33S, would highlight the presence of at least an additional oxidation pathway, different from O2+TMI, O3, OH, H2O2 and NO2. We suggest here the implication of two other possible oxidation pathways.
Final-revised paper