Articles | Volume 21, issue 19
https://doi.org/10.5194/acp-21-14649-2021
© Author(s) 2021. 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-21-14649-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Evolution of OH reactivity in NO-free volatile organic compound photooxidation investigated by the fully explicit GECKO-A model
Department of Chemistry, University of Colorado Boulder, Boulder, Colorado 80309, USA
Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, Colorado 80309, USA
Julia Lee-Taylor
Department of Chemistry, University of Colorado Boulder, Boulder, Colorado 80309, USA
Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, Colorado 80309, USA
Atmospheric Chemistry Observation and Modeling Laboratory, National Center for Atmospheric Research, Boulder, Colorado 80307, USA
Harald Stark
Department of Chemistry, University of Colorado Boulder, Boulder, Colorado 80309, USA
Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, Colorado 80309, USA
Aerodyne Research Inc., Billerica, Massachusetts 01821, USA
John J. Orlando
Atmospheric Chemistry Observation and Modeling Laboratory, National Center for Atmospheric Research, Boulder, Colorado 80307, USA
Bernard Aumont
Univ. Paris Est Créteil and Université de Paris, CNRS, LISA, 94010 Créteil, France
Jose L. Jimenez
CORRESPONDING AUTHOR
Department of Chemistry, University of Colorado Boulder, Boulder, Colorado 80309, USA
Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, Colorado 80309, USA
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Cited
11 citations as recorded by crossref.
- Predicting Real Refractive Index of Organic Aerosols From Elemental Composition Y. Li et al. https://doi.org/10.1029/2023GL103446
- Inter-comparisons of VOC oxidation mechanisms based on box model: A focus on OH reactivity X. Yang et al. https://doi.org/10.1016/j.jes.2021.09.002
- Importance of Particle-Phase Reactions in the Growth of Newly Formed Particles V. Vasudevan-Geetha et al. https://doi.org/10.1021/acsearthspacechem.5c00327
- Markers for anthropogenic sources of secondary organic aerosol: new evaluation from simulation chamber study D. Pereira et al. https://doi.org/10.1016/j.atmosenv.2026.122167
- Proxy-based analysis of ozone formation and oxidant variability under conditional regimes in a rural rice paddy region M. Kim et al. https://doi.org/10.1007/s44273-026-00092-5
- Organic carbon dry deposition outpaces atmospheric processing with unaccounted implications for air quality and freshwater ecosystems J. Liggio et al. https://doi.org/10.1126/sciadv.adr0259
- Additional HONO and OH Generation from Photoexcited Phenyl Organic Nitrates in the Photoreaction of Aromatics and NOx T. Chen et al. https://doi.org/10.1021/acs.est.3c10193
- Exploration of radical chemistry, precursor sensitivity and O3 control strategies in a provincial capital city, northwestern China J. Liu et al. https://doi.org/10.1016/j.atmosenv.2024.120792
- Oxidation Flow Reactor and Its Application in Secondary Organic Aerosol Formation in Laboratory Studies X. Ma et al. https://doi.org/10.1021/acsestair.5c00047
- Estimating rate coefficients for the reactions of ethers + OH from atmospheric to combustion temperatures: an extension of the electrotopological state method L. Michelat et al. https://doi.org/10.1039/D5EA00165J
- Is There an Optimal Wavelength for Germicidal Ultraviolet Air Disinfection? Z. Peng et al. https://doi.org/10.1021/acs.est.6c02001
11 citations as recorded by crossref.
- Predicting Real Refractive Index of Organic Aerosols From Elemental Composition Y. Li et al. https://doi.org/10.1029/2023GL103446
- Inter-comparisons of VOC oxidation mechanisms based on box model: A focus on OH reactivity X. Yang et al. https://doi.org/10.1016/j.jes.2021.09.002
- Importance of Particle-Phase Reactions in the Growth of Newly Formed Particles V. Vasudevan-Geetha et al. https://doi.org/10.1021/acsearthspacechem.5c00327
- Markers for anthropogenic sources of secondary organic aerosol: new evaluation from simulation chamber study D. Pereira et al. https://doi.org/10.1016/j.atmosenv.2026.122167
- Proxy-based analysis of ozone formation and oxidant variability under conditional regimes in a rural rice paddy region M. Kim et al. https://doi.org/10.1007/s44273-026-00092-5
- Organic carbon dry deposition outpaces atmospheric processing with unaccounted implications for air quality and freshwater ecosystems J. Liggio et al. https://doi.org/10.1126/sciadv.adr0259
- Additional HONO and OH Generation from Photoexcited Phenyl Organic Nitrates in the Photoreaction of Aromatics and NOx T. Chen et al. https://doi.org/10.1021/acs.est.3c10193
- Exploration of radical chemistry, precursor sensitivity and O3 control strategies in a provincial capital city, northwestern China J. Liu et al. https://doi.org/10.1016/j.atmosenv.2024.120792
- Oxidation Flow Reactor and Its Application in Secondary Organic Aerosol Formation in Laboratory Studies X. Ma et al. https://doi.org/10.1021/acsestair.5c00047
- Estimating rate coefficients for the reactions of ethers + OH from atmospheric to combustion temperatures: an extension of the electrotopological state method L. Michelat et al. https://doi.org/10.1039/D5EA00165J
- Is There an Optimal Wavelength for Germicidal Ultraviolet Air Disinfection? Z. Peng et al. https://doi.org/10.1021/acs.est.6c02001
Saved (final revised paper)
Latest update: 17 Jul 2026
Short summary
We use the fully explicit GECKO-A model to study the OH reactivity (OHR) evolution in the NO-free photooxidation of several volatile organic compounds. Oxidation progressively produces more saturated and functionalized species, then breaks them into small species. OHR per C atom evolution is similar for different precursors once saturated multifunctional species are formed. We also find that partitioning of these species to chamber walls leads to large deviations in chambers from the atmosphere.
We use the fully explicit GECKO-A model to study the OH reactivity (OHR) evolution in the...
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