Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 26, issue 9
Articles | Volume 26, issue 9
https://doi.org/10.5194/acp-26-6165-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-26-6165-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 26, issue 9
Research article
 | 
08 May 2026
Research article |  | 08 May 2026

Tropospheric bromine monoxide in Ny-Ålesund: source analysis and impacts on atmospheric chemistry

Qidi Li, Yuhan Luo, Xin Yang, Bianca Zilker, Andreas Richter, Ke Dou, Haijin Zhou, Kai Zhan, Fuqi Si, and Wenqing Liu

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Short summary
We investigated why reactive bromine increases in the Arctic atmosphere during spring. Using observations in Ny-Ålesund and modeling. We found that BrO increases are strongly linked to airborne particles and bromine emissions from snow over sea ice. Both snow over first-year and multi-year sea ice contribute comparably. These processes are enhanced by strong winds and drive depletion of surface ozone and mercury.
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