Articles | Volume 24, issue 8
https://doi.org/10.5194/acp-24-4789-2024
© 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-24-4789-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
22 Apr 2024
Research article |
| 22 Apr 2024
| 22 Apr 2024
Impact of HO2∕RO2 ratio on highly oxygenated α-pinene photooxidation products and secondary organic aerosol formation potential
Yarê Baker
Institute for Energy and Climate Research, IEK-8, Forschungszentrum Jülich, 52425 Jülich, Germany
Sungah Kang
Institute for Energy and Climate Research, IEK-8, Forschungszentrum Jülich, 52425 Jülich, Germany
Hui Wang
Institute for Energy and Climate Research, IEK-8, Forschungszentrum Jülich, 52425 Jülich, Germany
Rongrong Wu
Institute for Energy and Climate Research, IEK-8, Forschungszentrum Jülich, 52425 Jülich, Germany
Jian Xu
Institute for Energy and Climate Research, IEK-8, Forschungszentrum Jülich, 52425 Jülich, Germany
Annika Zanders
Institute for Energy and Climate Research, IEK-8, Forschungszentrum Jülich, 52425 Jülich, Germany
Quanfu He
Institute for Energy and Climate Research, IEK-8, Forschungszentrum Jülich, 52425 Jülich, Germany
Thorsten Hohaus
Institute for Energy and Climate Research, IEK-8, Forschungszentrum Jülich, 52425 Jülich, Germany
Till Ziehm
Institute for Energy and Climate Research, IEK-8, Forschungszentrum Jülich, 52425 Jülich, Germany
Veronica Geretti
Atmospheric Science, Department of Chemistry and Molecular Biology, University of Gothenburg, 41296 Gothenburg, Sweden
Thomas J. Bannan
Department for Earth and Environmental Sciences, University of Manchester, Manchester M13 9PL, UK
Simon P. O'Meara
Department for Earth and Environmental Sciences, University of Manchester, Manchester M13 9PL, UK
National Centre for Atmospheric Science, University of Manchester, Manchester M13 9PL, UK
Aristeidis Voliotis
Department for Earth and Environmental Sciences, University of Manchester, Manchester M13 9PL, UK
Mattias Hallquist
Atmospheric Science, Department of Chemistry and Molecular Biology, University of Gothenburg, 41296 Gothenburg, Sweden
Gordon McFiggans
Department for Earth and Environmental Sciences, University of Manchester, Manchester M13 9PL, UK
Sören R. Zorn
Institute for Energy and Climate Research, IEK-8, Forschungszentrum Jülich, 52425 Jülich, Germany
Andreas Wahner
Institute for Energy and Climate Research, IEK-8, Forschungszentrum Jülich, 52425 Jülich, Germany
Institute for Energy and Climate Research, IEK-8, Forschungszentrum Jülich, 52425 Jülich, Germany
Data sets
"Supplementary data for ``Impact of HO2/RO2 ratio on highly oxygenated α-pinene photooxidation products and secondary organic aerosol formation potential'' Yare Baker et al. https://doi.org/10.26165/JUELICH-DATA/R8ITFF
Short summary
Highly oxygenated organic molecules are important contributors to secondary organic aerosol. Their yield depends on detailed atmospheric chemical composition. One important parameter is the ratio of hydroperoxy radicals to organic peroxy radicals (HO2/RO2), and we show that higher HO2/RO2 ratios lower the secondary organic aerosol yield. This is of importance as laboratory studies are often biased towards organic peroxy radicals.
Highly oxygenated organic molecules are important contributors to secondary organic aerosol....
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