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  4. Cook County

Cook County

Illinois

2026-09-10 04:00
AQI (US)
Good
Pollutants|Pollens
PM2.5
μg/m³
4.5
O3
μg/m³
32.7
PM10
μg/m³
10.5
Weather
  • ℃
  • ℉
22℃
94%
11 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • O3
  • PM10
Places included
Barrington Township
AQI 22
Berwyn Township
AQI 26
Bloom Township
AQI 24
Bremen Township
AQI 25
Calumet Township
AQI 25
Chicago
AQI 26
Cicero Township
AQI 26
Elk Grove Township
AQI 27
Evanston Township
AQI 27
Hanover Township
AQI 22
Lemont Township
AQI 24
Leyden Township
AQI 32
Lyons Township
AQI 24
Maine Township
AQI 21
New Trier Township
AQI 27
Niles Township
AQI 23
Northfield Township
AQI 25
Norwood Park Township
AQI 33
Oak Park Township
AQI 26
Orland Township
AQI 25
Palatine Township
AQI 21
Palos Township
AQI 24
Proviso Township
AQI 28
Rich Township
AQI 24
River Forest Township
AQI 26
Riverside Township
AQI 24
Schaumburg Township
AQI 33
Stickney Township
AQI 25
Thornton Township
AQI 25
Wheeling Township
AQI 21
Worth Township
AQI 25
Data Sources
http://www.airnow.gov/

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Cities Nearby

Evergreen Park
AQI 26
Hometown
AQI 26
Oak Lawn
AQI 26
Burbank
AQI 26
Merrionette Park
AQI 25
Bedford Park
AQI 26
Chicago Ridge
AQI 25
Alsip
AQI 25
Calumet Park
AQI 25
Bridgeview
AQI 24
Blue Island
AQI 25