Overall, mobile sources are the largest source of pollutants that contribute to ozone in the Metro East. Fuel combustion from stationary sources, solvent use, and industrial processes also generate air pollution that contributes to ozone.
Sources of NOx in Madison, St. Clair, and Monroe Counties
Sources of VOCs in Madison, St. Clair, and Monroe Counties
Source: 2008 EPA National Emissions Inventory
Metro East Community Air Project
1 Regency Plaza
Collinsville, IL 62234