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Secondary organic aerosol formation and transport

Pandis, Spyros N. and Harley, Robert A. and Cass, Glen R. and Seinfeld, John H. (1992) Secondary organic aerosol formation and transport. Atmospheric Environment Part A-General Topics, 26 (13). pp. 2269-2282. ISSN 0960-1686. doi:10.1016/0960-1686(92)90358-R.

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A Lagrangian trajectory model simulating the formation, transport and deposition of secondary organic aerosol is developed and applied to the Los Angeles area, for the air pollution episode of 27–28 August 1987. The predicted secondary organic aerosol on 28 August 1987 represents 15–22% of the measured particulate organic carbon at inland locations in the base case simulations, and 5–8% of that at coastal locations. A maximum secondary organic aerosol concentration of 6.8 μg m^(−3) is predicted for Claremont, CA, during this episode. On a daily average basis at Claremont about 46% of this secondary organic aerosol is predicted to be a result of the oxidation of non-toluene aromatics (xylenes, alkylbenzenes, etc.), 19% from toluene, 16% from biogenic hydrocarbons (α-pinene, β-pinene, etc.), 15% from alkanes and 4% from alkenes. The major uncertainties in predicting secondary organic aerosol concentrations are the reactive organic gas emissions, the aerosol yields and the partitioning of the condensable gases between the two phases. Doubling the reactive organic gas (ROG) emissions results in an increase of the secondary organic aerosol predicted at Claremont by a factor of 2.3. Predicted secondary organic aerosol levels are less sensitive to changes in secondary organic aerosol deposition and NO_x emissions than to ROG emissions.

Item Type:Article
Related URLs:
URLURL TypeDescription
Pandis, Spyros N.0000-0001-8085-9795
Seinfeld, John H.0000-0003-1344-4068
Additional Information:© 1992 Elsevier Ltd. Received 28 October 1991, Accepted 2 March 1992. This work was supported by the Electric Power Research Institute, agreement RP3189-3.
Funding AgencyGrant Number
Electric Power Research Institute (EPRI)RP3189-3
Subject Keywords:Secondary organic aerosol; reactive organic gases; reactive organic gases; gas-to-particle conversion; SCAQS; photochemical modeling
Issue or Number:13
Record Number:CaltechAUTHORS:20160614-164345648
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Official Citation:Spyros N. Pandis, Robert A. Harley, Glen R. Cass, John H. Seinfeld, Secondary organic aerosol formation and transport, Atmospheric Environment. Part A. General Topics, Volume 26, Issue 13, 1992, Pages 2269-2282, ISSN 0960-1686, (
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:67928
Deposited By: George Porter
Deposited On:15 Jun 2016 15:34
Last Modified:11 Nov 2021 03:57

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