Investigation of the <i>α</i>-pinene photooxidation by OH in the atmospheric simulation chamber SAPHIR

Rolletter, Michael; Kaminski, Martin; Acir, Ismail-Hakki; Bohn, Birger; Dorn, Hans-Peter; Li, Xin; Lutz, Anna; Nehr, Sascha; Rohrer, Franz; Tillmann, Ralf; Wegener, Robert; Hofzumahaus, Andreas; Kiendler-Scharr, Astrid; Wahner, Andreas; Fuchs, Hendrik

doi:https://doi.org/10.5194/acp-19-11635-2019

Articles | Volume 19, issue 18

https://doi.org/10.5194/acp-19-11635-2019

© Author(s) 2019. 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-19-11635-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 19, issue 18

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, Martin Kaminski, Ismail-Hakki Acir, Birger Bohn, Hans-Peter Dorn, Xin Li, Anna Lutz, Sascha Nehr, Franz Rohrer, Ralf Tillmann, Robert Wegener, Andreas Hofzumahaus, Astrid Kiendler-Scharr, Andreas Wahner, and Hendrik Fuchs

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Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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RC1: 'This work concern on the photooxidation of α-pinene is interesting abd I recommend publication', Anonymous Referee #1, 09 Jul 2019
SC1: 'Comment on Rolletter et al.', L. Xu, 29 Jul 2019
RC2: 'RC', Anonymous Referee #2, 30 Jul 2019
AC1: 'Responses to the referees and Xu et al.', Michael Rolletter, 13 Aug 2019

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AR: Author's response | RR: Referee report | ED: Editor decision

AR by Michael Rolletter on behalf of the Authors (13 Aug 2019) Author's response Manuscript

ED: Publish as is (19 Aug 2019) by Harald Saathoff

AR by Michael Rolletter on behalf of the Authors (19 Aug 2019)

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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 NO_x and atmospheric alpha-pinene concentrations. Yields of the main degradation products acetone, formaldehyde, and pinonaldehyde were determined and the HO_x (OH + HO₂) radical budget was investigated. Measurements were used to test current atmospheric models and a theory-based mechanism.