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  4. St. Clair County

St. Clair County

Illinois

2026-04-09 13:00
AQHI (Canada)
Insufficient Data
Pollutants|Pollens
PM10
μg/m³
98.7
O3
μg/m³
85.7
PM2.5
μg/m³
12.4
Weather
  • ℃
  • ℉
20℃
59%
8 kph
3 of 11
Historical Data
  • Hourly
  • Daily
  • AQHI (Canada)
  • Pollen
  • PM10
  • O3
  • PM2.5
Places included
Belleville
AQI --
Canteen Township
AQI --
Caseyville Township
AQI --
Centreville Township
AQI --
East St. Louis Township
AQI --
Fayetteville Township
AQI --
Freeburg Township
AQI --
Lebanon Township
AQI --
Lenzburg Township
AQI --
Marissa Township
AQI --
Mascoutah Township
AQI --
Millstadt Township
AQI --
New Athens Township
AQI --
O'Fallon Township
AQI --
Shiloh Valley Township
AQI --
Smithton Township
AQI --
St. Clair Township
AQI --
Stites Township
AQI --
Sugar Loaf Township
AQI --
Data Sources
http://www.airnow.gov/

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Cities Nearby

Smithton
AQI --
New Athens
AQI --
Fayetteville
AQI --
Hecker
AQI --
Belleville
AQI --
Mascoutah
AQI 3
Lenzburg
AQI --
Swansea
AQI --
Millstadt
AQI --
Saint Libory
AQI --
Waterloo
AQI --