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

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

doi:https://doi.org/10.5194/acp-20-13701-2020

Articles | Volume 20, issue 22

https://doi.org/10.5194/acp-20-13701-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

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

https://doi.org/10.5194/acp-20-13701-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 20, issue 22

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

Supplement

https://doi.org/10.5194/acp-20-13701-2020-supplement

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.