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  4. Cook County

Cook County

Illinois

2026-09-09 02:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
80.6
PM10
μg/m³
21.1
PM2.5
μg/m³
9.1
Weather
  • ℃
  • ℉
26℃
66%
19 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • O3
  • PM10
  • PM2.5
Places included
Barrington Township
AQI 20
Berwyn Township
AQI 15
Bloom Township
AQI 27
Bremen Township
AQI 14
Calumet Township
AQI 27
Chicago
AQI 28
Cicero Township
AQI 23
Elk Grove Township
AQI 20
Evanston Township
AQI 29
Hanover Township
AQI 20
Lemont Township
AQI 29
Leyden Township
AQI 20
Lyons Township
AQI 14
Maine Township
AQI 25
New Trier Township
AQI 20
Niles Township
AQI 20
Northfield Township
AQI 27
Norwood Park Township
AQI 20
Oak Park Township
AQI 20
Orland Township
AQI 14
Palatine Township
AQI 20
Palos Township
AQI 14
Proviso Township
AQI 20
Rich Township
AQI 17
River Forest Township
AQI 20
Riverside Township
AQI 14
Schaumburg Township
AQI 20
Stickney Township
AQI 13
Thornton Township
AQI 27
Wheeling Township
AQI 20
Worth Township
AQI 28
Data Sources
http://www.airnow.gov/

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Cities Nearby

Evergreen Park
AQI 12
Hometown
AQI 12
Oak Lawn
AQI 12
Burbank
AQI 12
Merrionette Park
AQI 14
Bedford Park
AQI 12
Chicago Ridge
AQI 14
Alsip
AQI 28
Calumet Park
AQI 14
Bridgeview
AQI 14
Blue Island
AQI 14