Articles | Volume 25, issue 3
https://doi.org/10.5194/acp-25-1931-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-25-1931-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
13 Feb 2025
Research article |
| 13 Feb 2025
| 13 Feb 2025
Cloud processing of dimethyl sulfide (DMS) oxidation products limits sulfur dioxide (SO2) and carbonyl sulfide (OCS) production in the eastern North Atlantic marine boundary layer
Delaney B. Kilgour
Department of Chemistry, University of Wisconsin-Madison, Madison, WI 53706, USA
Christopher M. Jernigan
Department of Chemistry, University of Wisconsin-Madison, Madison, WI 53706, USA
now at: Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina 27711, USA
Olga Garmash
Department of Atmospheric Sciences, University of Washington, Seattle, WA 98195, USA
now at: Department of Chemistry, University of Copenhagen, 2100 Copenhagen, Denmark
Sneha Aggarwal
Department of Environmental Science, Stockholm University, Stockholm 10691, Sweden
Bolin Centre for Climate Research, Stockholm University, Stockholm 10691, Sweden
Shengqian Zhou
Center for Aerosol Science and Engineering, Department of Energy, Environmental and Chemical Engineering, Washington University in St. Louis, St. Louis, MO 63130, USA
Claudia Mohr
Department of Environmental Science, Stockholm University, Stockholm 10691, Sweden
now at: Department of Environmental Systems Science, ETH Zurich, 8092 Zürich, Switzerland
now at: Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, 5232 Villigen, Switzerland
Matt E. Salter
Department of Environmental Science, Stockholm University, Stockholm 10691, Sweden
Bolin Centre for Climate Research, Stockholm University, Stockholm 10691, Sweden
Joel A. Thornton
Department of Atmospheric Sciences, University of Washington, Seattle, WA 98195, USA
Jian Wang
Center for Aerosol Science and Engineering, Department of Energy, Environmental and Chemical Engineering, Washington University in St. Louis, St. Louis, MO 63130, USA
Paul Zieger
Department of Environmental Science, Stockholm University, Stockholm 10691, Sweden
Bolin Centre for Climate Research, Stockholm University, Stockholm 10691, Sweden
Timothy H. Bertram
CORRESPONDING AUTHOR
Department of Chemistry, University of Wisconsin-Madison, Madison, WI 53706, USA
Data sets
Cloud Processing of DMS Oxidation Products Limits SO2 and OCS Production in the Eastern North Atlantic Marine Boundary Layer Delaney B. Kilgour and Timothy H. Bertram http://digital.library.wisc.edu/1793/85493
Short summary
We report simultaneous measurements of dimethyl sulfide (DMS) and hydroperoxymethyl thioformate (HPMTF) in the eastern North Atlantic. We use an observationally constrained box model to show that cloud loss is the dominant sink of HPMTF in this region over 6 weeks, resulting in large reductions in DMS-derived products that contribute to aerosol formation and growth. Our findings indicate that fast cloud processing of HPMTF must be included in global models to accurately capture the sulfur cycle.
We report simultaneous measurements of dimethyl sulfide (DMS) and hydroperoxymethyl thioformate...
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