Articles | Volume 18, issue 5
Research article
12 Mar 2018
Research article |  | 12 Mar 2018

Multi-generation chemical aging of α-pinene ozonolysis products by reactions with OH

Ningxin Wang, Evangelia Kostenidou, Neil M. Donahue, and Spyros N. Pandis


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Spyros Pandis on behalf of the Authors (30 Dec 2017)  Author's response    Manuscript
ED: Publish subject to technical corrections (15 Jan 2018) by James B. Burkholder
Short summary
This study investigates aging in the α-pinene ozonolysis system with hydroxyl radicals (OH) through smog chamber experiments. After an equivalent of 2–4 days of typical atmospheric oxidation conditions, homogeneous OH oxidation of the α-pinene ozonolysis products resulted in a 20–40 % net increase in the organic aerosol concentration and an increase in aerosol O : C by up to 0.04. The relative humidity in the 5–50 % range had a minimum effect on aging.
Final-revised paper