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Aerosol formation in the photooxidation of isoprene and β-pinene

Pandis, Spyros N. and Paulson, Suzanne E. and Seinfeld, John H. and Flagan, Richard C. (1991) Aerosol formation in the photooxidation of isoprene and β-pinene. Atmospheric Environment Part A-General Topics, 25 (5/6). pp. 997-1008. ISSN 0960-1686. doi:10.1016/0960-1686(91)90141-S.

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Isoprene and β-pinene, at concentration levels ranging from a few ppb to a few ppm, were reacted photochemically with NO_x in the Caltech outdoor smog chamber facility. Aerosol formation from the isoprene photooxidation is found to be negligible even under extreme ambient conditions due to the relatively high vapor pressure of its products. Aerosol carbon yield from the β-pinene photooxidation is as high as 8% and depends strongly on the initial HC/NO_x ratio. The average vapor pressure of the β-pinene aerosol is estimated to be 37±24 ppt at 31 °C. Monoterpene photooxidation can be a significant source of secondary aerosol in rural environments and in urban areas with extended natural vegetation.

Item Type:Article
Related URLs:
URLURL TypeDescription
Pandis, Spyros N.0000-0001-8085-9795
Paulson, Suzanne E.0000-0003-0855-7615
Seinfeld, John H.0000-0003-1344-4068
Flagan, Richard C.0000-0001-5690-770X
Additional Information:© 1991 Pergamon. First received 29 May 1990 and in final form 4 September 1990. This work was supported by a grant from the Ford Motor Company and National Science Foundation grant ATM-9003186.
Funding AgencyGrant Number
Ford Motor CompanyUNSPECIFIED
Issue or Number:5/6
Record Number:CaltechAUTHORS:20150805-111100989
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Official Citation:Spyros N. Pandis, Suzanne E. Paulson, John H. Seinfeld, Richard C. Flagan, Aerosol formation in the photooxidation of isoprene and β-pinene, Atmospheric Environment. Part A. General Topics, Volume 25, Issue 5, 1991, Pages 997-1008, ISSN 0960-1686, (
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:59221
Deposited By: Irina Meininger
Deposited On:02 Oct 2015 23:01
Last Modified:10 Nov 2021 22:17

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