Articles | Volume 26, issue 3
https://doi.org/10.5194/acp-26-2225-2026
https://doi.org/10.5194/acp-26-2225-2026
Research article
 | 
12 Feb 2026
Research article |  | 12 Feb 2026

Coastal terrestrial emissions modify the composition and optical properties of aerosols in marginal seas

Kuanyun Hu, Narcisse Tsona Tchinda, Kun Li, Hartmut Herrmann, Jianlong Li, and Lin Du

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Short summary
This study reveals that summer aerosols over the Bohai and Yellow Seas are mainly influenced by coastal emissions. Despite a high proportion of marine air masses, molecular and isotopic analyses of aerosols show strong terrestrial characteristics. Biomass burning contributes 60–80 % of carbonaceous aerosols, while marine sources account for only ~ 20 %. The findings highlight that controlling coastal emissions within ~ 260 km is crucial for mitigating marginal sea pollution.
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