A Caltech Library Service

Modelling urban and regional aerosols—II. Application to California's South Coast Air Basin

Lurmann, F. W. and Wexler, A. S. and Pandis, S. N. and Musarra, S. and Kumar, N. and Seinfeld, J. H. (1997) Modelling urban and regional aerosols—II. Application to California's South Coast Air Basin. Atmospheric Environment, 31 (17). pp. 2695-2715. ISSN 1352-2310. doi:10.1016/s1352-2310(97)00100-3.

Full text is not posted in this repository. Consult Related URLs below.

Use this Persistent URL to link to this item:


A three-dimensional gas/aerosol atmospheric model is presented that predicts the size-resolved concentrations of all major primary and secondary components of atmospheric particulate matter (PM), including sulfate, nitrate, ammonium, chloride, sodium, elemental carbon, organic carbon, water, and crustal material. Aerosol size resolution is based on a sectional representation, typically extending from 0.01 to 10 μ for aerosols and from 0.01 to 30 μ when fog is present. The model is based on an internally mixed aerosol, wherein all particles in a specific size range are assumed to have the same chemical composition. Gas/aerosol equilibrium is computed based on the SEQUILIB algorithm of Pilinis and Seinfeld. An empirical fog model is included that approximates the effect of fogs on gas-phase photolysis rates, on aqueous-phase chemical reactions of sulfate and nitrate, and on the growth and shrinkage of the aerosol/fog droplet size distribution. The model is applied to simulate atmospheric conditions in the South Coast Air Basin of California during the 24–25 June 1987 episode of the Southern California Air Quality Study (SCAQS). The sensitivity of predicted aerosol levels to changes in source emissions is investigated.

Item Type:Article
Related URLs:
URLURL TypeDescription
Lurmann, F. W.0000-0001-9943-4172
Wexler, A. S.0000-0003-1565-814X
Pandis, S. N.0000-0001-8085-9795
Seinfeld, J. H.0000-0003-1344-4068
Additional Information:This work was supported by the State of California Air Resources Board under agreement 92-311.
Funding AgencyGrant Number
California Air Resources Board92-311
Issue or Number:17
Record Number:CaltechAUTHORS:20230222-980742900.6
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:119467
Deposited By: Tony Diaz
Deposited On:22 Feb 2023 23:15
Last Modified:22 Feb 2023 23:15

Repository Staff Only: item control page