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  4. Cook County

Cook County

Illinois

2026-09-11 13:00
AQI (US)
Moderate
Pollutants|Pollens
PM2.5
μg/m³
9.9
PM10
μg/m³
22.9
O3
μg/m³
15.8
Weather
  • ℃
  • ℉
20℃
72%
9 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • PM10
  • O3
Places included
Barrington Township
AQI 34
Berwyn Township
AQI 58
Bloom Township
AQI 51
Bremen Township
AQI 52
Calumet Township
AQI 52
Chicago
AQI 51
Cicero Township
AQI 58
Elk Grove Township
AQI 54
Evanston Township
AQI 33
Hanover Township
AQI 34
Lemont Township
AQI 38
Leyden Township
AQI 62
Lyons Township
AQI 58
Maine Township
AQI 29
New Trier Township
AQI 30
Niles Township
AQI 37
Northfield Township
AQI 30
Norwood Park Township
AQI 64
Oak Park Township
AQI 58
Orland Township
AQI 52
Palatine Township
AQI 30
Palos Township
AQI 56
Proviso Township
AQI 61
Rich Township
AQI 51
River Forest Township
AQI 58
Riverside Township
AQI 58
Schaumburg Township
AQI 64
Stickney Township
AQI 54
Thornton Township
AQI 50
Wheeling Township
AQI 29
Worth Township
AQI 52
Data Sources
http://www.airnow.gov/

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Cities Nearby

Evergreen Park
AQI 51
Hometown
AQI 51
Oak Lawn
AQI 51
Burbank
AQI 51
Merrionette Park
AQI 52
Bedford Park
AQI 51
Chicago Ridge
AQI 52
Alsip
AQI 52
Calumet Park
AQI 52
Bridgeview
AQI 58
Blue Island
AQI 52