Biogeosciences
Biogeosciences
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Articles | Volume 23, issue 20
Articles | Volume 23, issue 20
https://doi.org/10.5194/bg-23-7469-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-23-7469-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 23, issue 20
Research article
 | 
26 Oct 2026
Research article |  | 26 Oct 2026

DMS, MeSH and nanoparticles in semi-controlled deck-borne experiments using Antarctic seawater: on the effect of UV light

Guillaume Chamba, Karine Sellegri, Valérie Gros, Clémence Rose, Leah Williams, Elisa Berdalet, Dolors Vaqué, Magda Vila, Queralt Güell-Bujons, Elisabet-Laia Sà, Yaiza M. Castillo, Arianna Rocchi, Aurélie Colomb, Jean-Marc Pichon, Mickaël Ribeiro, Charel Wohl, Manuel Dall'Osto, and Rafel Simó

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Latest update: 26 Oct 2026
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Short summary
Oceans are a natural source of sulfur compounds that can influence climate by forming aerosol particles. During an oceanographic expedition around the Antarctic Peninsula, we measured the emissions of two of these compounds (DMS and methanethiol), their links to seawater microorganisms and particle formation in large enclosures exposed to natural or reduced UV radiation. Our results suggest that UV reduces these emissions and the formation of nanoparticles.
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