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  4. Cook County

Cook County

Illinois

2026-09-20 02:00
AQI (India)
Good
Pollutants|Pollens
PM10
μg/m³
32
PM2.5
μg/m³
14.8
O3
μg/m³
19.8
Weather
  • ℃
  • ℉
21℃
96%
9 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (India)
  • Pollen
  • PM10
  • PM2.5
  • O3
Places included
Barrington Township
AQI 35
Berwyn Township
AQI 33
Bloom Township
AQI 27
Bremen Township
AQI 20
Calumet Township
AQI 22
Chicago
AQI 21
Cicero Township
AQI 33
Elk Grove Township
AQI 35
Evanston Township
AQI 45
Hanover Township
AQI 35
Lemont Township
AQI 22
Leyden Township
AQI 35
Lyons Township
AQI 15
Maine Township
AQI 35
New Trier Township
AQI 37
Niles Township
AQI 35
Northfield Township
AQI 39
Norwood Park Township
AQI 35
Oak Park Township
AQI 35
Orland Township
AQI 19
Palatine Township
AQI 35
Palos Township
AQI 16
Proviso Township
AQI 35
Rich Township
AQI 27
River Forest Township
AQI 35
Riverside Township
AQI 15
Schaumburg Township
AQI 35
Stickney Township
AQI 15
Thornton Township
AQI 24
Wheeling Township
AQI 35
Worth Township
AQI 18
Data Sources
http://www.airnow.gov/

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Cities Nearby

Evergreen Park
AQI 16
Hometown
AQI 16
Oak Lawn
AQI 16
Burbank
AQI 16
Merrionette Park
AQI 19
Bedford Park
AQI 16
Chicago Ridge
AQI 19
Alsip
AQI 19
Calumet Park
AQI 19
Bridgeview
AQI 15
Blue Island
AQI 19