Home > USA > Illinois > St. Clair County > O Fallon
Primary air pollutant in the O Fallon area:
OZONE - 46 Good
Enjoy your outdoor activities.
Other Pollutants:
PM2.5 - 37 Good
PM10 - 19 Good
Primary Pollutant: PM2.5 - 0 Good
Secondary Pollutant: OZONE - 0 Good
Primary Pollutant: PM2.5 - 0 Moderate
Secondary Pollutant: OZONE - 0 Good
Primary Pollutant: PM2.5 - 0 Moderate
Secondary Pollutant: OZONE - 0 Moderate