Air Quality in Illinois

Real-time air quality data for 1 city in Illinois. Average AQI across the state is currently 47 (Good).

47
Good
State Average
1
Cities Monitored
1
Cities with Good Air Quality

Cities in Illinois

Sorted by air quality (best first)

1Chicago
GoodAQI 47

About Air Quality in Illinois

Air quality in Illinois varies by location, season, and weather conditions. We monitor air quality across 1 major cities using data from the EPA's AirNow network.

The best air quality in Illinois is currently in Chicago with an AQI of 47.

Factors Affecting Air Quality in Illinois

  • Vehicle emissions and traffic patterns
  • Industrial activity and power generation
  • Weather conditions (wind, temperature inversions)
  • Wildfire smoke (seasonal)
  • Geographic features (valleys, coastal areas)