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  4. Cook County

Cook County

Illinois

2026-09-09 07:00
AQI (China)
Excellent
Pollutants|Pollens
PM10
μg/m³
25
O3
μg/m³
61.8
PM2.5
μg/m³
10.4
Weather
  • ℃
  • ℉
24℃
82%
8 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • PM10
  • O3
  • PM2.5
Places included
Barrington Township
AQI 22
Berwyn Township
AQI 25
Bloom Township
AQI 30
Bremen Township
AQI 30
Calumet Township
AQI 30
Chicago
AQI 30
Cicero Township
AQI 25
Elk Grove Township
AQI 22
Evanston Township
AQI 23
Hanover Township
AQI 22
Lemont Township
AQI 25
Leyden Township
AQI 25
Lyons Township
AQI 25
Maine Township
AQI 22
New Trier Township
AQI 22
Niles Township
AQI 22
Northfield Township
AQI 22
Norwood Park Township
AQI 25
Oak Park Township
AQI 25
Orland Township
AQI 27
Palatine Township
AQI 22
Palos Township
AQI 25
Proviso Township
AQI 25
Rich Township
AQI 30
River Forest Township
AQI 25
Riverside Township
AQI 25
Schaumburg Township
AQI 22
Stickney Township
AQI 25
Thornton Township
AQI 30
Wheeling Township
AQI 22
Worth Township
AQI 27
Data Sources
http://www.airnow.gov/

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Cities Nearby

Evergreen Park
AQI 30
Hometown
AQI 25
Oak Lawn
AQI 25
Burbank
AQI 25
Merrionette Park
AQI 30
Bedford Park
AQI 25
Chicago Ridge
AQI 25
Alsip
AQI 26
Calumet Park
AQI 30
Bridgeview
AQI 25
Blue Island
AQI 30