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  4. Cook County

Cook County

Illinois

2026-09-11 21:00
AQI (US)
Good
Pollutants|Pollens
O3
μg/m³
102.2
PM2.5
μg/m³
6.6
PM10
μg/m³
13.4
Weather
  • ℃
  • ℉
27℃
55%
20 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM2.5
  • PM10
Places included
Barrington Township
AQI 28
Berwyn Township
AQI 36
Bloom Township
AQI 38
Bremen Township
AQI 44
Calumet Township
AQI 42
Chicago
AQI 56
Cicero Township
AQI 46
Elk Grove Township
AQI 40
Evanston Township
AQI 27
Hanover Township
AQI 28
Lemont Township
AQI 47
Leyden Township
AQI 48
Lyons Township
AQI 40
Maine Township
AQI 72
New Trier Township
AQI 27
Niles Township
AQI 31
Northfield Township
AQI 60
Norwood Park Township
AQI 50
Oak Park Township
AQI 36
Orland Township
AQI 44
Palatine Township
AQI 29
Palos Township
AQI 42
Proviso Township
AQI 44
Rich Township
AQI 38
River Forest Township
AQI 36
Riverside Township
AQI 40
Schaumburg Township
AQI 50
Stickney Township
AQI 39
Thornton Township
AQI 37
Wheeling Township
AQI 30
Worth Township
AQI 49
Data Sources
http://www.airnow.gov/

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Cities Nearby

Evergreen Park
AQI 38
Hometown
AQI 38
Oak Lawn
AQI 38
Burbank
AQI 38
Merrionette Park
AQI 44
Bedford Park
AQI 38
Chicago Ridge
AQI 44
Alsip
AQI 49
Calumet Park
AQI 44
Bridgeview
AQI 40
Blue Island
AQI 44