Articles | Volume 20, issue 22
https://doi.org/10.5194/acp-20-13701-2020
https://doi.org/10.5194/acp-20-13701-2020
Research article
 | 
14 Nov 2020
Research article |  | 14 Nov 2020

Photooxidation of pinonaldehyde at ambient conditions investigated in the atmospheric simulation chamber SAPHIR

Michael Rolletter, Marion Blocquet, Martin Kaminski, Birger Bohn, Hans-Peter Dorn, Andreas Hofzumahaus, Frank Holland, Xin Li, Franz Rohrer, Ralf Tillmann, Robert Wegener, Astrid Kiendler-Scharr, Andreas Wahner, and Hendrik Fuchs

Data sets

Atmospheric simulation chamber study: pinonaldehyde + OH - Gas-phase oxidation - product study (17.07.2014) H. Fuchs, M. Rolletter, M. Blocquet, M. Kaminski, B. Bohn, H.-P. Dorn, A. Hofzumahaus, F. Holland, X. Li, F. Rohrer, R. Tillmann, R. Wegener, A. Kiendler-Scharr, and A. Wahner https://doi.org/10.25326/G53K-WH75

Atmospheric simulation chamber study: pinonaldehyde + OH - Gas-phase oxidation - product study (18.07.2014) H. Fuchs, M. Rolletter, M. Blocquet, M. Kaminski, B. Bohn, H.-P. Dorn, A. Hofzumahaus, F. Holland, X. Li, F. Rohrer, R. Tillmann, R. Wegener, A. Kiendler-Scharr, and A. Wahner https://doi.org/10.25326/887C-F682

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Short summary
The photooxidation of pinonaldehyde is investigated in a chamber study under natural sunlight and low NO conditions with and without an added hydroxyl radical (OH) scavenger. The experimentally determined pinonaldehyde photolysis frequency is faster by a factor of 3.5 than currently used parameterizations in atmospheric models. Yields of degradation products are measured in the presence and absence of OH. Measurements are compared to current atmospheric models and a theory-based mechanism.
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