Particle formation from the oxidation of alpha-pinene by ozone

Fitzgerald, James; Hoppel, William; Frick, Glendon; Caffrey, Peter; Pasternack, Louise; Hegg, Dean; Gao, Song; Ambrusko, John; Sullivan, William; Leaitch, Richard; Cantrell, Christopher
August 2000
AIP Conference Proceedings;2000, Vol. 534 Issue 1, p847
Academic Journal
Nucleation and growth of SOA were observed from the reaction products of α-pinene and ozone, utilizing relatively low concentrations of α-pinene (16 ppb) and ozone (95 ppb). Good agreement between observed and modeled results was obtained when the yield was about 5.2% and the SVP of the condensing species was about 0.008 ppb. Our results suggest that the nucleation rate in the α-pinene/ozone system may be limited by the initial nucleation steps.


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