1. North America
  2. United States
  3. Illinois
  4. St. Clair County

St. Clair County

Illinois

2026-03-09 16:00
AQI (China)
Excellent
Pollutants|Pollens
PM10
μg/m³
40.3
O3
μg/m³
60
PM2.5
μg/m³
7.4
Weather
  • ℃
  • ℉
21℃
69%
28 kph
5 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • PM10
  • O3
  • PM2.5
Places included
Belleville
AQI 51
Canteen Township
AQI 24
Caseyville Township
AQI 24
Centreville Township
AQI 51
East St. Louis Township
AQI 51
Fayetteville Township
AQI 10
Freeburg Township
AQI 10
Lebanon Township
AQI 19
Lenzburg Township
AQI 10
Marissa Township
AQI 10
Mascoutah Township
AQI 19
Millstadt Township
AQI 51
New Athens Township
AQI 10
O'Fallon Township
AQI 24
Shiloh Valley Township
AQI 10
Smithton Township
AQI 10
St. Clair Township
AQI 51
Stites Township
AQI 51
Sugar Loaf Township
AQI 19
Data Sources
http://www.airnow.gov/

Get the App

Scan QR Code
Air Matters
Realtime broadcasting air quality information on your phone for more than 180 countries.

iPhone, iPad

Android

Cities Nearby

Smithton
AQI 10
New Athens
AQI 10
Fayetteville
AQI 10
Hecker
AQI 10
Belleville
AQI 51
Mascoutah
AQI 19
Lenzburg
AQI 10
Swansea
AQI 51
Millstadt
AQI 51
Saint Libory
AQI 10
Waterloo
AQI 16