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  4. Cook County

Cook County

Illinois

2026-05-25 00:00
AQI (US)
Good
Pollutants|Pollens
O3
μg/m³
114.4
PM2.5
μg/m³
7.6
PM10
μg/m³
10
Weather
  • ℃
  • ℉
21℃
70%
9 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM2.5
  • PM10
Places included
Barrington Township
AQI 19
Berwyn Township
AQI 51
Bloom Township
AQI 52
Bremen Township
AQI 51
Calumet Township
AQI 52
Chicago
AQI 50
Cicero Township
AQI 51
Elk Grove Township
AQI 38
Evanston Township
AQI 49
Hanover Township
AQI 19
Lemont Township
AQI 69
Leyden Township
AQI 46
Lyons Township
AQI 44
Maine Township
AQI 49
New Trier Township
AQI 35
Niles Township
AQI 38
Northfield Township
AQI 48
Norwood Park Township
AQI 43
Oak Park Township
AQI 51
Orland Township
AQI 51
Palatine Township
AQI 28
Palos Township
AQI 47
Proviso Township
AQI 45
Rich Township
AQI 52
River Forest Township
AQI 51
Riverside Township
AQI 44
Schaumburg Township
AQI 43
Stickney Township
AQI 50
Thornton Township
AQI 51
Wheeling Township
AQI 33
Worth Township
AQI 66
Data Sources
http://www.airnow.gov/

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Cities Nearby

Evergreen Park
AQI 52
Hometown
AQI 52
Oak Lawn
AQI 52
Burbank
AQI 52
Merrionette Park
AQI 51
Bedford Park
AQI 52
Chicago Ridge
AQI 51
Alsip
AQI 66
Calumet Park
AQI 51
Bridgeview
AQI 44
Blue Island
AQI 51