Articles | Volume 17, issue 1
Atmos. Chem. Phys., 17, 159–174, 2017
https://doi.org/10.5194/acp-17-159-2017
Atmos. Chem. Phys., 17, 159–174, 2017
https://doi.org/10.5194/acp-17-159-2017

Research article 04 Jan 2017

Research article | 04 Jan 2017

Molecular composition and volatility of isoprene photochemical oxidation secondary organic aerosol under low- and high-NOx conditions

Emma L. D'Ambro et al.

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Short summary
We studied the formation and properties of secondary organic aerosol produced from isoprene. We find that a significant fraction (~50 %) of the mass is composed of low-volatility, highly oxidized compounds such as C5H12O6. A significant fraction of the remainder appears to be in the form of oligomeric material. Adding NOx maintained or decreased SOA yields while increasing the fraction of low-volatility material, possibly due to oligomers.
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