Articles | Volume 25, issue 18
https://doi.org/10.5194/acp-25-10731-2025
© 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-25-10731-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
18 Sep 2025
Research article |
| 18 Sep 2025
| 18 Sep 2025
Roles of pH, ionic strength, and sulfate in the aqueous nitrate-mediated photooxidation of green leaf volatiles
Yuting Lyu
School of Energy and Environment, City University of Hong Kong, Hong Kong SAR, China
State Key of Marine Environmental Health, City University of Hong Kong, Hong Kong SAR, China
Taekyu Joo
Department of Earth and Environmental Sciences, Korea University, Seoul, South Korea
Ruihan Ma
School of Energy and Environment, City University of Hong Kong, Hong Kong SAR, China
Mark Kristan Espejo Cabello
School of Energy and Environment, City University of Hong Kong, Hong Kong SAR, China
State Key of Marine Environmental Health, City University of Hong Kong, Hong Kong SAR, China
Tianye Zhou
School of Energy and Environment, City University of Hong Kong, Hong Kong SAR, China
Shun Yeung
School of Energy and Environment, City University of Hong Kong, Hong Kong SAR, China
Cheuk Ki Wong
School of Energy and Environment, City University of Hong Kong, Hong Kong SAR, China
Yifang Gu
School of Energy and Environment, City University of Hong Kong, Hong Kong SAR, China
Yiming Qin
School of Energy and Environment, City University of Hong Kong, Hong Kong SAR, China
School of Energy and Environment, City University of Hong Kong, Hong Kong SAR, China
State Key of Marine Environmental Health, City University of Hong Kong, Hong Kong SAR, China
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Short summary
We investigated the aqueous nitrate-mediated photooxidation of four green leaf volatiles (GLVs). The aqueous reaction medium conditions, dilute cloud/fog vs. concentrated aqueous aerosol conditions, governed the effects that pH, ionic strength, and sulfate have on the GLV degradation rates and aqueous secondary organic aerosol (aqSOA) mass yields. Most notably, reactions initiated by sulfate photolysis have significant effects in aqueous aerosols but not in cloud/fog droplets.
We investigated the aqueous nitrate-mediated photooxidation of four green leaf volatiles (GLVs)....
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