Articles | Volume 19, issue 9
https://doi.org/10.5194/acp-19-6579-2019
© 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-19-6579-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| Highlight paper
| 
17 May 2019
Research article | Highlight paper |
| 17 May 2019
| 17 May 2019
Photooxidants from brown carbon and other chromophores in illuminated particle extracts
Richie Kaur
Department of Land, Air and Water Resources, University of
California, Davis, One Shields Avenue, Davis, CA 95616-8627, USA
Jacqueline R. Labins
Department of Land, Air and Water Resources, University of
California, Davis, One Shields Avenue, Davis, CA 95616-8627, USA
Scarlett S. Helbock
Department of Land, Air and Water Resources, University of
California, Davis, One Shields Avenue, Davis, CA 95616-8627, USA
Wenqing Jiang
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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45 citations as recorded by crossref.
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- Wildfire particulate matter as a source of environmentally persistent free radicals and reactive oxygen species T. Fang et al. 10.1039/D2EA00170E
- Significantly Accelerated Photosensitized Formation of Atmospheric Sulfate at the Air–Water Interface of Microdroplets W. Wang et al. 10.1021/jacs.3c11892
- Asphalt-related emissions are a major missing nontraditional source of secondary organic aerosol precursors P. Khare et al. 10.1126/sciadv.abb9785
- Influence of Fuel Properties on the Light Absorption of Fresh and Laboratory-Aged Atmospheric Brown Carbon Produced from Realistic Combustion of Boreal Peat and Spruce Foliage M. Lyu et al. 10.1021/acs.est.1c07091
- Interparticle Delivery and Detection of Volatile Singlet Oxygen at Air/Solid Interfaces A. Durantini & A. Greer 10.1021/acs.est.0c07922
- Kinetics and Mass Yields of Aqueous Secondary Organic Aerosol from Highly Substituted Phenols Reacting with a Triplet Excited State L. Ma et al. 10.1021/acs.est.1c00575
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- Molecular composition and photochemical lifetimes of brown carbon chromophores in biomass burning organic aerosol L. Fleming et al. 10.5194/acp-20-1105-2020
- Optical and chemical properties and oxidative potential of aqueous-phase products from OH and <sup>3</sup>C<sup>∗</sup>-initiated photooxidation of eugenol X. Li et al. 10.5194/acp-22-7793-2022
- Reactive Oxygen Species Production from Secondary Organic Aerosols: The Importance of Singlet Oxygen A. Manfrin et al. 10.1021/acs.est.9b01609
- Singlet Oxygen Quantum Yields in Environmental Waters R. Ossola et al. 10.1021/acs.chemrev.0c00781
- Effect of Ammonium Salts on the Decarboxylation of Oxaloacetic Acid in Atmospheric Particles A. Klodt et al. 10.1021/acsearthspacechem.1c00025
- Sulfate formation via aerosol-phase SO2 oxidation by model biomass burning photosensitizers: 3,4-dimethoxybenzaldehyde, vanillin and syringaldehyde using single-particle mixing-state analysis L. Zhou et al. 10.5194/acp-23-5251-2023
- Sulfur radical formation from the tropospheric irradiation of aqueous sulfate aerosols J. Cope et al. 10.1073/pnas.2202857119
- Evaluation of Probes to Measure Oxidizing Organic Triplet Excited States in Aerosol Liquid Water L. Ma et al. 10.1021/acs.est.2c09672
- Photoaging of phenolic secondary organic aerosol in the aqueous phase: evolution of chemical and optical properties and effects of oxidants W. Jiang et al. 10.5194/acp-23-7103-2023
- Singlet Oxygen Seasonality in Aqueous PM10 is Driven by Biomass Burning and Anthropogenic Secondary Organic Aerosol S. Bogler et al. 10.1021/acs.est.2c04554
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- Modeling Novel Aqueous Particle and Cloud Chemistry Processes of Biomass Burning Phenols and Their Potential to Form Secondary Organic Aerosols J. Zhang et al. 10.1021/acs.est.3c07762
- Aqueous secondary organic aerosol formation from the direct photosensitized oxidation of vanillin in the absence and presence of ammonium nitrate B. Mabato et al. 10.5194/acp-22-273-2022
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2 citations as recorded by crossref.
- Photosensitized Reactions of a Phenolic Carbonyl from Wood Combustion in the Aqueous Phase—Chemical Evolution and Light Absorption Properties of AqSOA W. Jiang et al. 10.1021/acs.est.0c07581
- Aqueous reactions of organic triplet excited states with atmospheric alkenes R. Kaur et al. 10.5194/acp-19-5021-2019
Latest update: 19 Apr 2024
Short summary
We measured hydroxyl radical (•OH), singlet oxygen (1O2*), and organic triplets (3C*) in illuminated aqueous particle extracts. After measuring the impact of dilution on oxidant concentrations, we extrapolated our results to predict them in ambient particles – 1O2* and 3C* concentrations appear to be greatly enhanced, while •OH appears largely unchanged. Two of these oxidants (1O2*, 3C*) are not yet included in atmospheric models, and our results make it possible to include them in the future.
We measured hydroxyl radical (•OH), singlet oxygen (1O2*), and organic triplets (3C*) in...
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