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Articles | Volume 23, issue 3
Articles | Volume 23, issue 3
https://doi.org/10.5194/bg-23-1261-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/bg-23-1261-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 23, issue 3
Research article
 | 
13 Feb 2026
Research article |  | 13 Feb 2026

Distribution and sea-to-air exchange of carbon monoxide in surface microlayer and subsurface seawater in the eastern marginal seas of China

Lin Yang, Bin Yang, Jing Zhang, Anja Engel, and Gui-Peng Yang

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Short summary
Carbon monoxide (CO), chromophoric dissolved organic matter (CDOM), and fluorescent dissolved organic matter (FDOM) were more frequently enriched in the higher temperature and salinity off-shore regions. Marine-humic like CDOM tends to inhibit the sea-to-air flux of CO in the sea-surface microlayer (SML). The enrichment and photochemical process of CO in the SML were more active during the daytime. The photochemical production and microbial consumption rates of CO in the SML were more active than in the subsurface layer (SSW).
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