Articles | Volume 19, issue 18
Atmos. Chem. Phys., 19, 11635–11649, 2019
https://doi.org/10.5194/acp-19-11635-2019

Special issue: Simulation chambers as tools in atmospheric research (AMT/ACP/GMD...

Atmos. Chem. Phys., 19, 11635–11649, 2019
https://doi.org/10.5194/acp-19-11635-2019

Research article 17 Sep 2019

Research article | 17 Sep 2019

Investigation of the α-pinene photooxidation by OH in the atmospheric simulation chamber SAPHIR

Michael Rolletter et al.

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Short summary
Here we present a study of the photooxidation of alpha-pinene, the most abundant monoterpene, by hydroxyl radicals (OH) conducted in the simulation chamber SAPHIR under low NOx and atmospheric alpha-pinene concentrations. Yields of the main degradation products acetone, formaldehyde, and pinonaldehyde were determined and the HOx (OH + HO2) radical budget was investigated. Measurements were used to test current atmospheric models and a theory-based mechanism.
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