Articles | Volume 19, issue 6
https://doi.org/10.5194/acp-19-3981-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-19-3981-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
The role of chlorine in global tropospheric chemistry
School of Engineering and Applied Sciences, Harvard University,
Cambridge, Massachusetts, USA
Daniel J. Jacob
School of Engineering and Applied Sciences, Harvard University,
Cambridge, Massachusetts, USA
Department of Earth and Planetary Sciences, Harvard
University, Cambridge, Massachusetts, USA
Sebastian D. Eastham
Laboratory for Aviation and the Environment, Massachusetts
Institute of Technology, Cambridge, Massachusetts, USA
Melissa P. Sulprizio
School of Engineering and Applied Sciences, Harvard University,
Cambridge, Massachusetts, USA
School of Engineering and Applied Sciences, Harvard University,
Cambridge, Massachusetts, USA
Qianjie Chen
Department of Chemistry, University of Michigan, Ann Arbor, Michigan,
USA
Becky Alexander
Department of Atmospheric Sciences, University of Washington,
Seattle, USA
Tomás Sherwen
Wolfson Atmospheric Chemistry Laboratories, Department of Chemistry,
University of York, York, UK
National Centre for Atmospheric Science, University of York, York,
UK
Mathew J. Evans
Wolfson Atmospheric Chemistry Laboratories, Department of Chemistry,
University of York, York, UK
National Centre for Atmospheric Science, University of York, York,
UK
Ben H. Lee
Department of Atmospheric Sciences, University of Washington,
Seattle, USA
Jessica D. Haskins
Department of Atmospheric Sciences, University of Washington,
Seattle, USA
Felipe D. Lopez-Hilfiker
Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, Villigen, Switzerland
Joel A. Thornton
Department of Atmospheric Sciences, University of Washington,
Seattle, USA
Gregory L. Huey
School of Earth and Atmospheric Science, Georgia Institute of
Technology, Atlanta, GA, USA
Hong Liao
School of Environmental Science and Engineering, Nanjing
University
of Information Science and Technology, Nanjing, China
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Latest update: 06 Dec 2025
Short summary
Chlorine radicals have a broad range of implications for tropospheric chemistry, air quality, and climate. We present a comprehensive simulation of tropospheric chlorine in a global 3-D model, which includes explicit accounting of chloride mobilization from sea salt aerosol. We find the chlorine chemistry contributes 1.0 % of the global oxidation of methane and decreases global burdens of tropospheric ozone by 7 % and OH by 3 % through the associated bromine radical chemistry.
Chlorine radicals have a broad range of implications for tropospheric chemistry, air quality,...
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