Articles | Volume 19, issue 11
https://doi.org/10.5194/acp-19-7255-2019
https://doi.org/10.5194/acp-19-7255-2019
Research article
 | 
03 Jun 2019
Research article |  | 03 Jun 2019

Low-volatility compounds contribute significantly to isoprene secondary organic aerosol (SOA) under high-NOx conditions

Rebecca H. Schwantes, Sophia M. Charan, Kelvin H. Bates, Yuanlong Huang, Tran B. Nguyen, Huajun Mai, Weimeng Kong, Richard C. Flagan, and John H. Seinfeld

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Short summary
Oxidation of isoprene, the dominant non-methane biogenic volatile organic compound emitted into the atmosphere, is a significant source of secondary organic aerosol (SOA). Here formation of SOA from isoprene oxidation by the hydroxyl radical (OH) under high-NO conditions is measured. This work improves our understanding of isoprene SOA formation by demonstrating that low-volatility compounds formed under high-NO conditions produce significantly more aerosol than previously thought.
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