Articles | Volume 24, issue 1
https://doi.org/10.5194/acp-24-1-2024
© Author(s) 2024. 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-24-1-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Seasonal variations in photooxidant formation and light absorption in aqueous extracts of ambient particles
Lan Ma
Department of Land, Air and Water Resources, University of California, Davis, One Shields Avenue, Davis, CA 95616-8627, USA
now at: SGS-CSTC Standards Technical Services Co. Ltd., Hangzhou Branch, Hangzhou, Zhejiang Province, 310052, China
Reed Worland
Department of Land, Air and Water Resources, University of California, Davis, One Shields Avenue, Davis, CA 95616-8627, USA
now at: Department of Chemistry, University of Washington, 1410 Northeast Campus Parkway, Seattle, WA 98195, USA
Laura Heinlein
Department of Land, Air and Water Resources, University of California, Davis, One Shields Avenue, Davis, CA 95616-8627, USA
Chrystal Guzman
Department of Land, Air and Water Resources, University of California, Davis, One Shields Avenue, Davis, CA 95616-8627, USA
now at: Department of Pharmacology, University of Washington, 1410 Northeast Campus Parkway, Seattle, WA 98195, USA
Wenqing Jiang
Department of Environmental Toxicology, University of California, Davis, One Shields Avenue, Davis, CA 95616-8627, USA
Christopher Niedek
Department of Environmental Toxicology, University of California, Davis, One Shields Avenue, Davis, CA 95616-8627, USA
Keith J. Bein
Center for Health and the Environment, University of California, Davis, One Shields Avenue, Davis, CA 95616-8627, USA
Department of Environmental Toxicology, University of California, Davis, One Shields Avenue, Davis, CA 95616-8627, USA
Department of Land, Air and Water Resources, University of California, Davis, One Shields Avenue, Davis, CA 95616-8627, USA
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Cited
11 citations as recorded by crossref.
- Complexities of Photosensitization in Atmospheric Particles Z. Liang et al. 10.1021/acsestair.4c00112
- Aqueous Oxidation of Biomass-Burning Furans by Singlet Molecular Oxygen (1O2*) S. Arciva et al. 10.1021/acs.est.4c10778
- Singlet oxygen is produced from brown carbon-containing cooking organic aerosols (BrCOA) under indoor lighting N. Borduas-Dedekind et al. 10.1039/D3EA00167A
- Evaluating the potential secondary contribution of photosensitized chemistry to OH production in aqueous aerosols E. Petersen-Sonn et al. 10.1039/D4EA00103F
- Modeling the Tropospheric Aqueous-Phase Chemistry of Photosensitizers under Wildfire-Plume and Urban Conditions with CAPRAM-PS1.0 E. Hoffmann et al. 10.1021/acsearthspacechem.5c00033
- Formation and loss of light absorbance by phenolic aqueous SOA by ●OH and an organic triplet excited state S. Arciva et al. 10.5194/acp-24-4473-2024
- Effects of copper on chemical kinetics and brown carbon formation in the aqueous ˙OH oxidation of phenolic compounds J. Yang et al. 10.1039/D4EM00191E
- Reactive species-mediated phototransformation of triphenyl phosphate in cloud water: Kinetics, pathways and implications Y. Wu et al. 10.1016/j.envpol.2025.126717
- Hydrogen peroxide photoformation in particulate matter and its contribution to S(IV) oxidation during winter in Fairbanks, Alaska M. Sunday et al. 10.5194/acp-25-5087-2025
- Tropospheric Multiphase Chemistry: Excited Triplet States Compete with OH Radicals and Singlet Molecular Oxygen E. Petersen-Sonn et al. 10.1021/acsearthspacechem.4c00295
- Efficient Production of Reactive Oxidants by Atmospheric Bacterial-Derived Organic Matter in the Aqueous Phase Y. Liu et al. 10.1021/acs.est.5c01526
11 citations as recorded by crossref.
- Complexities of Photosensitization in Atmospheric Particles Z. Liang et al. 10.1021/acsestair.4c00112
- Aqueous Oxidation of Biomass-Burning Furans by Singlet Molecular Oxygen (1O2*) S. Arciva et al. 10.1021/acs.est.4c10778
- Singlet oxygen is produced from brown carbon-containing cooking organic aerosols (BrCOA) under indoor lighting N. Borduas-Dedekind et al. 10.1039/D3EA00167A
- Evaluating the potential secondary contribution of photosensitized chemistry to OH production in aqueous aerosols E. Petersen-Sonn et al. 10.1039/D4EA00103F
- Modeling the Tropospheric Aqueous-Phase Chemistry of Photosensitizers under Wildfire-Plume and Urban Conditions with CAPRAM-PS1.0 E. Hoffmann et al. 10.1021/acsearthspacechem.5c00033
- Formation and loss of light absorbance by phenolic aqueous SOA by ●OH and an organic triplet excited state S. Arciva et al. 10.5194/acp-24-4473-2024
- Effects of copper on chemical kinetics and brown carbon formation in the aqueous ˙OH oxidation of phenolic compounds J. Yang et al. 10.1039/D4EM00191E
- Reactive species-mediated phototransformation of triphenyl phosphate in cloud water: Kinetics, pathways and implications Y. Wu et al. 10.1016/j.envpol.2025.126717
- Hydrogen peroxide photoformation in particulate matter and its contribution to S(IV) oxidation during winter in Fairbanks, Alaska M. Sunday et al. 10.5194/acp-25-5087-2025
- Tropospheric Multiphase Chemistry: Excited Triplet States Compete with OH Radicals and Singlet Molecular Oxygen E. Petersen-Sonn et al. 10.1021/acsearthspacechem.4c00295
- Efficient Production of Reactive Oxidants by Atmospheric Bacterial-Derived Organic Matter in the Aqueous Phase Y. Liu et al. 10.1021/acs.est.5c01526
Latest update: 07 Jul 2025
Short summary
We measured concentrations of three photooxidants – the hydroxyl radical, triplet excited states of organic carbon, and singlet molecular oxygen – in fine particles collected over a year. Concentrations are highest in extracts of fresh biomass burning particles, largely because they have the highest particle concentrations and highest light absorption. When normalized by light absorption, rates of formation for each oxidant are generally similar for the four particle types we observed.
We measured concentrations of three photooxidants – the hydroxyl radical, triplet excited states...
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