Articles | Volume 21, issue 18
https://doi.org/10.5194/acp-21-13973-2021
https://doi.org/10.5194/acp-21-13973-2021
Research article
 | 
21 Sep 2021
Research article |  | 21 Sep 2021

Global tropospheric halogen (Cl, Br, I) chemistry and its impact on oxidants

Xuan Wang, Daniel J. Jacob, William Downs, Shuting Zhai, Lei Zhu, Viral Shah, Christopher D. Holmes, Tomás Sherwen, Becky Alexander, Mathew J. Evans, Sebastian D. Eastham, J. Andrew Neuman, Patrick R. Veres, Theodore K. Koenig, Rainer Volkamer, L. Gregory Huey, Thomas J. Bannan, Carl J. Percival, Ben H. Lee, and Joel A. Thornton

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AR: Author's response | RR: Referee report | ED: Editor decision
AR by Xuan Wang on behalf of the Authors (10 Aug 2021)  Author's response    Author's tracked changes    Manuscript
ED: Publish as is (23 Aug 2021) by Andreas Hofzumahaus
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Short summary
Halogen radicals have a broad range of implications for tropospheric chemistry, air quality, and climate. We present a new mechanistic description and comprehensive simulation of tropospheric halogens in a global 3-D model and compare the model results with surface and aircraft measurements. We find that halogen chemistry decreases the global tropospheric burden of ozone by 11 %, NOx by 6 %, and OH by 4 %.
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