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

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

doi:10.5194/acp-26-6165-2026

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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Cumulative views and downloads (calculated since 18 Nov 2025)

Month	HTML	PDF	XML	Total
Nov 2025	613	130	80	823
Dec 2025	253	255	55	563
Jan 2026	390	290	60	740
Feb 2026	272	285	12	569
Mar 2026	231	300	15	546
Apr 2026	82	51	1	134
May 2026	404	111	14	529
Jun 2026	69	22	6	97
Jul 2026	80	31	57	168

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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.