Articles | Volume 25, issue 21
https://doi.org/10.5194/acp-25-15613-2025
© Author(s) 2025. 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-25-15613-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
13 Nov 2025
Research article |
| 13 Nov 2025
| 13 Nov 2025
Hygroscopicity of isoprene-derived secondary organic aerosol mixture proxies: importance of diffusion and salting-in effects
Nahin Ferdousi-Rokib
CORRESPONDING AUTHOR
Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, MD 20742, United States
now at: Department of Environmental Health and Engineering, Whiting School of Engineering, Johns Hopkins University, Baltimore, MD 21218, United States
N. Cazimir Armstrong
Department of Environmental Sciences and Engineering, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
Stephanie Jacoby
Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742, United States
Alana J. Dodero
Department of Atmospheric Sciences, Texas A&M University, College Station, Texas 77843, United States
Martin Changman Ahn
Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, MD 20742, United States
Ergine Zephira Remy
Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, MD 20742, United States
Zhenfa Zhang
Department of Environmental Sciences and Engineering, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
Avram Gold
Department of Environmental Sciences and Engineering, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
Joseph L. Woo
Department of Chemical and Biomolecular Engineering, Lafayette College, Easton, PA 18042, United States
Yue Zhang
Department of Atmospheric Sciences, Texas A&M University, College Station, Texas 77843, United States
Jason D. Surratt
Department of Environmental Sciences and Engineering, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, MD 20742, United States
Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742, United States
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Short summary
This study looks at how natural compounds when mixed with salts in the air affect how clouds form. These compounds come from plants and are found all over the world. They are sticky, and this changes how water droplets and clouds form. Sometimes the compound spreads more easily when mixed with salt, while the other compound does not change. Depending on the condition, these mixtures can behave differently, which affects how we predict cloud formation.
This study looks at how natural compounds when mixed with salts in the air affect how clouds...
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