Tehran is facing a serious automotive air pollution problem. This is due to the large number of vehicles operating in Tehran, no auto‐exhaust emission control strategies in effect, and frequent occurrence of traffic congestions. Based on the emission factors which have been experimentally developed for automobiles in Tehran, Traffic survey, and fuel consumptions data the dally tonnage of the air pollutants from vehicles and other sources was calculated for year 1977. The study then focuses on the years 1982 and 1987. For each of these years projections of automotive and stationary emissions of air pollutants were determined under the assumption that no auto‐emission control would be implemented. Those emissions were then adjusted according to the extent of control in use.