Criteria Air Pollutants
Sulfur dioxide (0.03 ppm annual; 0.14 ppm 24-hr)
Nitrogen dioxide (0.053 ppm annual)
Carbon monoxide (9 ppm 8-hr; 35 ppm 1-hr)
Ozone (0.12 ppm 1-hr; becoming 0.085 ppm 8-hr)
PM-10 (50 mg/m3 annual; 150 mg/m3 24-hr; soon to add PM2.5)
Lead (1.5 mg/m3 quarterly)
Note: National Ambient Air Quality Standards (NAAQS)