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  4. Cook County

Cook County

Illinois

2026-02-17 00:00
AQI (US)
Good
Pollutants|Pollens
PM2.5
μg/m³
8.3
O3
μg/m³
77.1
PM10
μg/m³
19
Weather
  • ℃
  • ℉
13℃
74%
3 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • O3
  • PM10
Places included
Barrington Township
AQI 51
Berwyn Township
AQI 45
Bloom Township
AQI 48
Bremen Township
AQI 35
Calumet Township
AQI 38
Chicago
AQI 52
Cicero Township
AQI 45
Elk Grove Township
AQI 52
Evanston Township
AQI 37
Hanover Township
AQI 51
Lemont Township
AQI 32
Leyden Township
AQI 53
Lyons Township
AQI 45
Maine Township
AQI 52
New Trier Township
AQI 37
Niles Township
AQI 54
Northfield Township
AQI 43
Norwood Park Township
AQI 52
Oak Park Township
AQI 45
Orland Township
AQI 33
Palatine Township
AQI 52
Palos Township
AQI 41
Proviso Township
AQI 50
Rich Township
AQI 48
River Forest Township
AQI 45
Riverside Township
AQI 45
Schaumburg Township
AQI 52
Stickney Township
AQI 43
Thornton Township
AQI 46
Wheeling Township
AQI 52
Worth Township
AQI 36
Data Sources
http://www.airnow.gov/

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Cities Nearby

Evergreen Park
AQI 40
Hometown
AQI 40
Oak Lawn
AQI 40
Burbank
AQI 40
Merrionette Park
AQI 33
Bedford Park
AQI 40
Chicago Ridge
AQI 33
Alsip
AQI 33
Calumet Park
AQI 33
Bridgeview
AQI 45
Blue Island
AQI 33