Articles | Volume 18, issue 5
Atmos. Chem. Phys., 18, 3589–3601, 2018
https://doi.org/10.5194/acp-18-3589-2018
Atmos. Chem. Phys., 18, 3589–3601, 2018
https://doi.org/10.5194/acp-18-3589-2018

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 et al.

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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
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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.
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