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  4. Cook County

Cook County

Illinois

2026-05-23 09:00
AQI (US)
Good
Pollutants|Pollens
O3
μg/m³
62
PM2.5
μg/m³
3.9
PM10
μg/m³
12.9
Weather
  • ℃
  • ℉
13℃
95%
11 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM2.5
  • PM10
Places included
Barrington Township
AQI 20
Berwyn Township
AQI 22
Bloom Township
AQI 25
Bremen Township
AQI 21
Calumet Township
AQI 22
Chicago
AQI 30
Cicero Township
AQI 26
Elk Grove Township
AQI 21
Evanston Township
AQI 32
Hanover Township
AQI 20
Lemont Township
AQI 23
Leyden Township
AQI 23
Lyons Township
AQI 23
Maine Township
AQI 29
New Trier Township
AQI 23
Niles Township
AQI 20
Northfield Township
AQI 31
Norwood Park Township
AQI 23
Oak Park Township
AQI 22
Orland Township
AQI 20
Palatine Township
AQI 20
Palos Township
AQI 22
Proviso Township
AQI 23
Rich Township
AQI 25
River Forest Township
AQI 22
Riverside Township
AQI 23
Schaumburg Township
AQI 23
Stickney Township
AQI 24
Thornton Township
AQI 25
Wheeling Township
AQI 20
Worth Township
AQI 28
Data Sources
http://www.airnow.gov/

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Cities Nearby

Evergreen Park
AQI 25
Hometown
AQI 25
Oak Lawn
AQI 25
Burbank
AQI 25
Merrionette Park
AQI 20
Bedford Park
AQI 25
Chicago Ridge
AQI 20
Alsip
AQI 28
Calumet Park
AQI 20
Bridgeview
AQI 23
Blue Island
AQI 20