Illinois Air Quality Index (AQI) | Air Pollution
Real-time PM2.5, PM10 air pollution level in Illinois
Check the air quality level of thecities in Illinois
Illinois
Illinois's Cities
Real-time Air Pollution Level
United States's Metro Cities
Air Quality Index
Most Polluted Cities 2026
United States
Analyze the real-time most air polluted cities in the country.
Standard Value
1.
Pendleton, Oregon
Unhealthy
1xabove Standard
2.
Moses Lake, Washington
Unhealthy
1xequal Standard
3.
Hermiston, Oregon
Unhealthy
1xabove Standard
4.
Sunnyside, Washington
Unhealthy
1xabove Standard
5.
Kennewick, Washington
Unhealthy
1xabove Standard
6.
Walla Walla, Washington
Poor
2xbelow Standard
7.
Toppenish, Washington
Poor
1xequal Standard
8.
Boise, Idaho
Poor
1xbelow Standard
9.
Meridian, Idaho
Poor
1xbelow Standard
10.
Garden City, Idaho
Poor
1xbelow Standard
Last Updated: 25 Sept 2026, 11:42 PM
AQI City RankingsAir Quality Solutions For Illinois
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Illinois's AQI Data Analytics Solutions
Air quality data monitoring platforms
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