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Published November 1973 | public
Journal Article

Mathematical modeling of photochemical air pollution—I: Formulation of the model


The formulation of a model for predicting the dynamic behavior of chemically reacting air pollutants in an urban atmosphere is presented. The Los Angeles airshed was chosen as the region for initial application of the model. The model development and validation program is divided into three parts: 1. I—Formulation of the model; 2. II—A model and inventory of pollutant emissions; 3. III—Evaluation of the model. In this paper (Part I) we derive the basic equations governing the model, discuss the treatment of meteorological variables (inversion height, wind field, and turbulent eddy diffusivity), present a kinetic mechanism for photochemical smog, and describe the technique employed for numerical integration of the governing partial differential equations for the mean concentrations of carbon monoxide, hydrocarbons, nitric oxide, nitrogen dioxide, and ozone.

Additional Information

© 1973 Published by Elsevier. is work was supported in part by the Environmental Protection Agency under contracts CPA 70-148 and 68-02-0339 and in part by National Science Foundation Grant GK-35476.

Additional details

August 22, 2023
October 23, 2023