Articles | Volume 21, issue 18
Atmos. Chem. Phys., 21, 13973–13996, 2021
https://doi.org/10.5194/acp-21-13973-2021
Atmos. Chem. Phys., 21, 13973–13996, 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 et al.

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Latest update: 28 Sep 2022
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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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