Articles | Volume 23, issue 18
https://doi.org/10.5194/acp-23-10287-2023
© Author(s) 2023. 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-23-10287-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
15 Sep 2023
Research article |
| 15 Sep 2023
| 15 Sep 2023
OH, HO2, and RO2 radical chemistry in a rural forest environment: measurements, model comparisons, and evidence of a missing radical sink
Department of Chemistry, Indiana University, Bloomington, IN 47405,
USA
Michelle M. Lew
Department of Chemistry, Indiana University, Bloomington, IN 47405,
USA
now at: California Air Resources Board, Sacramento, CA 95814, USA
Youngjun Woo
Department of Chemistry, Indiana University, Bloomington, IN 47405,
USA
Pamela Rickly
O'Neill School of Public and Environmental Affairs, Indiana
University, Bloomington, IN 47405, USA
now at: Colorado Department of Public Health and Environment, Denver, CO 80246, USA
Matthew D. Rollings
Department of Chemistry, University of Massachusetts, Amherst, MA
01003, USA
now at: Dept. of Chemistry, University of California, Berkeley CA
94720, USA
Benjamin Deming
Department of Chemistry, University of Massachusetts, Amherst, MA
01003, USA
now at: Dept. of Chemistry, Smith College, Northampton MA 01063, USA
Daniel C. Anderson
Department of Chemistry, Drexel University, Philadelphia, PA 19104,
USA
now at: GESTAR II, University of Maryland Baltimore County,
Baltimore, MD 21228, USA
Ezra Wood
Department of Chemistry, Drexel University, Philadelphia, PA 19104,
USA
Hariprasad D. Alwe
Department of Soil, Water, and Climate, University of Minnesota, Twin Cities, Saint Paul, MN 55108, USA
now at: Forschungszentrum Jülich, Institute of Energy and Climate Research, Troposphere (IEK-8), Jülich, Germany
Dylan B. Millet
Department of Soil, Water, and Climate, University of Minnesota, Twin Cities, Saint Paul, MN 55108, USA
Andrew Weinheimer
National Center for Atmospheric Research, Boulder, CO, 80305, USA
Geoff Tyndall
National Center for Atmospheric Research, Boulder, CO, 80305, USA
John Ortega
National Center for Atmospheric Research, Boulder, CO, 80305, USA
Sebastien Dusanter
IMT Nord Europe, Institut Mines- Télécom, Univ. Lille, Center for Energy and Environment, 59000 Lille, France
Thierry Leonardis
IMT Nord Europe, Institut Mines- Télécom, Univ. Lille, Center for Energy and Environment, 59000 Lille, France
James Flynn
Department of Earth and Atmospheric Sciences, University of Houston, Houston, TX 77004, USA
Matt Erickson
Department of Earth and Atmospheric Sciences, University of Houston, Houston, TX 77004, USA
Sergio Alvarez
Department of Earth and Atmospheric Sciences, University of Houston, Houston, TX 77004, USA
Jean C. Rivera-Rios
Department of Chemistry and Chemical Biology, Harvard University,
Cambridge, MA 02138, USA
now at: School of Chemical & Biomolecular Engineering, Georgia
Institute of Technology, Atlanta, GA 30332, USA
Joshua D. Shutter
Department of Chemistry and Chemical Biology, Harvard University,
Cambridge, MA 02138, USA
now at: Department of Soil, Water and Climate, University of
Minnesota, St. Paul, MN 55108, USA
Frank Keutsch
Department of Chemistry and Chemical Biology, Harvard University,
Cambridge, MA 02138, USA
Detlev Helmig
Boulder A.I.R. LLC, Boulder, CO 80305, USA
Institute of Arctic and Alpine Research, University of Colorado,
Boulder, CO 80309, USA
Hannah M. Allen
Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA 91125, USA
Johnathan H. Slade
Department of Chemistry, Purdue University, West Lafayette, IN 47907, USA
now at: Department of Chemistry and Biochemistry, University of
California San Diego, La Jolla, CA 92093, USA
Paul B. Shepson
Department of Chemistry, Purdue University, West Lafayette, IN 47907, USA
Department of Earth, Atmospheric, and Planetary Sciences, Purdue
University, West Lafayette, IN 47907, USA
now at: School of Marine and Atmospheric Sciences, Stony Brook
University, Stony Brook, NY 11794, USA
Steven Bertman
Institute of the Environment and Sustainability, Western Michigan
University, Kalamazoo, MI, 49008, USA
Department of Chemistry, Indiana University, Bloomington, IN 47405,
USA
O'Neill School of Public and Environmental Affairs, Indiana
University, Bloomington, IN 47405, USA
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Cited
7 citations as recorded by crossref.
- Long-term evolution of carbonaceous aerosols in PM2.5 during over a decade of atmospheric pollution outbreaks and control in polluted central China Z. Dong et al. 10.1016/j.scitotenv.2024.173089
- Quantifying bimolecular reaction kinetics of isoprene hydroxy peroxy radical: From dry to highly humid atmospheric environment J. Xu & Z. Chen 10.1016/j.atmosenv.2024.120627
- HO2˙ as a potential reactant for the bimolecular reaction of tert-butoxy radicals in the atmosphere P. Rai et al. 10.1039/D4CP02800G
- Vertical Variations in Biogenic Organic Nitrates at Two Temperate Forest Sites D. Wei et al. 10.1021/acsestair.4c00123
- A Study on the Formation Reactions and Conversion Mechanisms of HONO and HNO3 in the Atmosphere of Daejeon, Korea K. Kim et al. 10.3390/atmos15030267
- Accurate Kinetic Studies of OH + HO2 Radical–Radical Reaction through Direct Measurement of Precursor and Radical Concentrations with High-Resolution Time-Resolved Dual-Comb Spectroscopy I. Chen et al. 10.1021/acs.jpclett.4c00494
- Unclassical Radical Generation Mechanisms in the Troposphere: A Review X. Yang et al. 10.1021/acs.est.4c00742
7 citations as recorded by crossref.
- Long-term evolution of carbonaceous aerosols in PM2.5 during over a decade of atmospheric pollution outbreaks and control in polluted central China Z. Dong et al. 10.1016/j.scitotenv.2024.173089
- Quantifying bimolecular reaction kinetics of isoprene hydroxy peroxy radical: From dry to highly humid atmospheric environment J. Xu & Z. Chen 10.1016/j.atmosenv.2024.120627
- HO2˙ as a potential reactant for the bimolecular reaction of tert-butoxy radicals in the atmosphere P. Rai et al. 10.1039/D4CP02800G
- Vertical Variations in Biogenic Organic Nitrates at Two Temperate Forest Sites D. Wei et al. 10.1021/acsestair.4c00123
- A Study on the Formation Reactions and Conversion Mechanisms of HONO and HNO3 in the Atmosphere of Daejeon, Korea K. Kim et al. 10.3390/atmos15030267
- Accurate Kinetic Studies of OH + HO2 Radical–Radical Reaction through Direct Measurement of Precursor and Radical Concentrations with High-Resolution Time-Resolved Dual-Comb Spectroscopy I. Chen et al. 10.1021/acs.jpclett.4c00494
- Unclassical Radical Generation Mechanisms in the Troposphere: A Review X. Yang et al. 10.1021/acs.est.4c00742
Latest update: 06 Nov 2024
Short summary
The hydroxyl (OH), hydroperoxy (HO2), and organic peroxy (RO2) radicals play important roles in atmospheric chemistry and have significant air quality implications. Here, we compare measurements of OH, HO2, and total peroxy radicals (XO2) made in a remote forest in Michigan, USA, to predictions from a series of chemical models. Lower measured radical concentrations suggest that the models may be missing an important radical sink and overestimating the rate of ozone production in this forest.
The hydroxyl (OH), hydroperoxy (HO2), and organic peroxy (RO2) radicals play important roles in...
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