Articles | Volume 20, issue 5
https://doi.org/10.5194/acp-20-3249-2020
© Author(s) 2020. 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-20-3249-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Aerosol pH and liquid water content determine when particulate matter is sensitive to ammonia and nitrate availability
Athanasios Nenes
CORRESPONDING AUTHOR
Institute for Chemical Engineering Sciences, Foundation for Research and Technology – Hellas, Patras 26504, Greece
School of Architecture, Civil and Environmental Engineering, École Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland
Spyros N. Pandis
Institute for Chemical Engineering Sciences, Foundation for Research and Technology – Hellas, Patras 26504, Greece
Department of Chemical Engineering, University of Patras, Patras 26504, Greece
Rodney J. Weber
School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA 30332, USA
Armistead Russell
School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
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Latest update: 08 Jun 2023
Short summary
We show that aerosol acidity (pH) and liquid water content naturally emerge as previously ignored parameters that drive particulate matter formation in the atmosphere, and its sensitivity to emissions of ammonia and nitric acid. The simple framework presented is easily applied to ambient measurements or model output, and it provides the
chemical regimeof PM sensitivity to ammonia and nitric acid availability.
We show that aerosol acidity (pH) and liquid water content naturally emerge as previously...
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