Biogeosciences
Biogeosciences
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Articles | Volume 23, issue 9
Articles | Volume 23, issue 9
https://doi.org/10.5194/bg-23-3159-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-23-3159-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 23, issue 9
Research article
 | 
08 May 2026
Research article |  | 08 May 2026

Linking surface coverage with surfactant activity to refine the role of surfactants for air-sea gas exchange

Falko Asmussen-Schäfer, Mariana Ribas-Ribas, Oliver Wurl, and Gernot Friedrichs

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Short summary
We developed an approach to quantify how molecules accumulate at the ocean surface on a nanometer scale. By combining laser spectroscopy with an electrochemical technique, we determined how densely these molecular films cover the water surface. Such single-molecule-thick layers can strongly affect gas transfer between the ocean and the atmosphere. Comparing our measurements with existing datasets allowed us to generate an initial global estimate of surfactant surface coverage potential.
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