Articles | Volume 18, issue 5
https://doi.org/10.5194/acp-18-3589-2018
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, Evangelia Kostenidou, Neil M. Donahue, and Spyros N. Pandis

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Cited articles

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Chacon-Madrid, H. J., Henry, K. M., and Donahue, N. M.: Photo-oxidation of pinonaldehyde at low NOx: from chemistry to organic aerosol formation, Atmos. Chem. Phys., 13, 3227–3236, https://doi.org/10.5194/acp-13-3227-2013, 2013. 
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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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