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  4. Cook County

Cook County

Illinois

2026-09-10 02:00
AQI (US)
Good
Pollutants|Pollens
PM2.5
μg/m³
4.5
O3
μg/m³
33.7
PM10
μg/m³
10.4
Weather
  • ℃
  • ℉
23℃
90%
13 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • O3
  • PM10
Places included
Barrington Township
AQI 22
Berwyn Township
AQI 27
Bloom Township
AQI 24
Bremen Township
AQI 25
Calumet Township
AQI 25
Chicago
AQI 26
Cicero Township
AQI 27
Elk Grove Township
AQI 25
Evanston Township
AQI 25
Hanover Township
AQI 22
Lemont Township
AQI 27
Leyden Township
AQI 30
Lyons Township
AQI 26
Maine Township
AQI 20
New Trier Township
AQI 25
Niles Township
AQI 22
Northfield Township
AQI 23
Norwood Park Township
AQI 30
Oak Park Township
AQI 27
Orland Township
AQI 25
Palatine Township
AQI 21
Palos Township
AQI 26
Proviso Township
AQI 28
Rich Township
AQI 24
River Forest Township
AQI 27
Riverside Township
AQI 26
Schaumburg Township
AQI 30
Stickney Township
AQI 26
Thornton Township
AQI 24
Wheeling Township
AQI 20
Worth Township
AQI 26
Data Sources
http://www.airnow.gov/

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Cities Nearby

Evergreen Park
AQI 27
Hometown
AQI 27
Oak Lawn
AQI 27
Burbank
AQI 27
Merrionette Park
AQI 25
Bedford Park
AQI 27
Chicago Ridge
AQI 25
Alsip
AQI 25
Calumet Park
AQI 25
Bridgeview
AQI 26
Blue Island
AQI 25