O'Fallon Township Real-time Air Quality Index (AQI) & Pollution Report - Air Matters

O'Fallon Township

St. Clair County

2026-03-09 19:00

AQI (China)

Excellent

PM10

μg/m³

24

PM2.5

μg/m³

8.5

Weather

23℃

69%

27 kph

4 of 11

Historical Data

Places included

Data Sources

http://www.airnow.gov/

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Cities Nearby

Fairview Heights