Articles | Volume 20, issue 6
https://doi.org/10.5194/acp-20-3333-2020
© Author(s) 2020. 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-20-3333-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Importance of isomerization reactions for OH radical regeneration from the photo-oxidation of isoprene investigated in the atmospheric simulation chamber SAPHIR
Forschungszentrum Jülich, Institute for Energy and Climate
Research: Troposphere (IEK-8), 52425 Jülich, Germany
Luc Vereecken
Forschungszentrum Jülich, Institute for Energy and Climate
Research: Troposphere (IEK-8), 52425 Jülich, Germany
Birger Bohn
Forschungszentrum Jülich, Institute for Energy and Climate
Research: Troposphere (IEK-8), 52425 Jülich, Germany
Hans-Peter Dorn
Forschungszentrum Jülich, Institute for Energy and Climate
Research: Troposphere (IEK-8), 52425 Jülich, Germany
Georgios I. Gkatzelis
Forschungszentrum Jülich, Institute for Energy and Climate
Research: Troposphere (IEK-8), 52425 Jülich, Germany
now at: NOAA Earth Systems Research Laboratory, Boulder, Colorado
80305, USA
now at: Cooperative Institute for Research in Environmental Sciences,
Boulder, Colorado 80309, USA
Andreas Hofzumahaus
Forschungszentrum Jülich, Institute for Energy and Climate
Research: Troposphere (IEK-8), 52425 Jülich, Germany
Frank Holland
Forschungszentrum Jülich, Institute for Energy and Climate
Research: Troposphere (IEK-8), 52425 Jülich, Germany
David Reimer
Forschungszentrum Jülich, Institute for Energy and Climate
Research: Troposphere (IEK-8), 52425 Jülich, Germany
Franz Rohrer
Forschungszentrum Jülich, Institute for Energy and Climate
Research: Troposphere (IEK-8), 52425 Jülich, Germany
Simon Rosanka
Forschungszentrum Jülich, Institute for Energy and Climate
Research: Troposphere (IEK-8), 52425 Jülich, Germany
Domenico Taraborrelli
Forschungszentrum Jülich, Institute for Energy and Climate
Research: Troposphere (IEK-8), 52425 Jülich, Germany
Ralf Tillmann
Forschungszentrum Jülich, Institute for Energy and Climate
Research: Troposphere (IEK-8), 52425 Jülich, Germany
Robert Wegener
Forschungszentrum Jülich, Institute for Energy and Climate
Research: Troposphere (IEK-8), 52425 Jülich, Germany
Zhujun Yu
Forschungszentrum Jülich, Institute for Energy and Climate
Research: Troposphere (IEK-8), 52425 Jülich, Germany
now at: Institute of Mass Spectrometry and Atmospheric
Environment, Jinan University, Guangzhou 510632, China
Astrid Kiendler-Scharr
Forschungszentrum Jülich, Institute for Energy and Climate
Research: Troposphere (IEK-8), 52425 Jülich, Germany
Andreas Wahner
Forschungszentrum Jülich, Institute for Energy and Climate
Research: Troposphere (IEK-8), 52425 Jülich, Germany
Hendrik Fuchs
Forschungszentrum Jülich, Institute for Energy and Climate
Research: Troposphere (IEK-8), 52425 Jülich, Germany
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Latest update: 06 Nov 2025
Short summary
Experimental evidence from a simulation chamber study shows that the regeneration efficiency of the hydroxyl radical is maintained globally at values higher than 0.5 for a wide range of nitrogen oxide concentrations as a result of isomerizations of peroxy radicals originating from the OH oxidation of isoprene. The available models were tested, and suggestions on how to improve their ability to reproduce the measured radical and oxygenated volatile organic compound concentrations are provided.
Experimental evidence from a simulation chamber study shows that the regeneration efficiency of...
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