Articles | Volume 19, issue 11
Atmos. Chem. Phys., 19, 7609–7625, 2019
https://doi.org/10.5194/acp-19-7609-2019
Atmos. Chem. Phys., 19, 7609–7625, 2019
https://doi.org/10.5194/acp-19-7609-2019

Research article 07 Jun 2019

Research article | 07 Jun 2019

Effect of temperature on the formation of highly oxygenated organic molecules (HOMs) from alpha-pinene ozonolysis

Lauriane L. J. Quéléver et al.

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AR: Author's response | RR: Referee report | ED: Editor decision
AR by Lauriane L. J. Quéléver on behalf of the Authors (25 Mar 2019)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (26 Mar 2019) by Nga Lee Ng
RR by Anonymous Referee #1 (26 Mar 2019)
RR by Anonymous Referee #3 (01 Apr 2019)
ED: Reconsider after major revisions (01 Apr 2019) by Nga Lee Ng
AR by Lauriane L. J. Quéléver on behalf of the Authors (19 Apr 2019)  Author's response
ED: Publish as is (29 Apr 2019) by Nga Lee Ng
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Short summary
Highly oxygenated organic molecules (HOMs) form rapidly in oxidation of monoterpenes and have been shown to be crucial for secondary organic aerosol formation. We studied the formation of HOMs under different temperatures, finding a strong dependence on their yields. As temperatures decrease, the isomerization reactions that allow rapid oxidation by molecular oxygen slow down, and competing reaction pathways can suppress the HOM formation almost completely, especially at high VOC loadings.
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