The primary function of the Air Monitoring Program is to operate and maintain a 31 station monitoring network, including necessary repair, maintenance, and quality control activities. The monitoring network provides the data required to determine attainment status of both National and State ambient air quality standards.

Additionally, a network of toxics monitors collect data to insure permit conditions are met and for State and National programs. Air monitoring data are also used for AQI forecasts, CAP modeling, PSD modeling, and EIRs. Sampling projects such as Dioxin monitoring, Children's Environmental Health Protection Program (SB25) and PM2.5 speciation sampling provide data for the development of Clean Air Plans and new and modified regulations.