An operational model for vehicular pollution from a road network
by Jari Harkonen, Kimmo Lahtinen, Esko Valkonen, Jaakko Kukkonen
International Journal of Environment and Pollution (IJEP), Vol. 8, No. 3/4/5/6, 1997

Abstract: We present a brief review of the mathematical model CAR-FMI (contaminants in the Air from a Road, by the Finnish Meteorological Institute). The model has been developed for regulatory purposes, for predicting dispersion of pollution from a road network. It consists of an emission module, treatment of the meteorological time-series, an atmospheric dispersion module, and statistical analysis of the computed time-series of concentrations. The dispersion module is based on an analytical solution of the Gaussian diffusion equation for a finite line source; the solution allows for any wind direction with respect to the road. The model also takes into account the chemical transformation of nitrogen oxides. The program is commercially available as a personal computer version in either DOS or Windows environment; using the model does not require specialist training.

Online publication date: Tue, 15-Sep-2009

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