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  4. Cook County

Cook County

Illinois

2026-05-16 05:00
AQI (US)
Good
Pollutants|Pollens
O3
μg/m³
93.8
PM2.5
μg/m³
5.2
PM10
μg/m³
9
Weather
  • ℃
  • ℉
19℃
72%
24 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM2.5
  • PM10
Places included
Barrington Township
AQI 29
Berwyn Township
AQI 33
Bloom Township
AQI 32
Bremen Township
AQI 27
Calumet Township
AQI 28
Chicago
AQI 40
Cicero Township
AQI 38
Elk Grove Township
AQI 30
Evanston Township
AQI 41
Hanover Township
AQI 29
Lemont Township
AQI 27
Leyden Township
AQI 38
Lyons Township
AQI 31
Maine Township
AQI 44
New Trier Township
AQI 24
Niles Township
AQI 28
Northfield Township
AQI 45
Norwood Park Township
AQI 32
Oak Park Township
AQI 33
Orland Township
AQI 26
Palatine Township
AQI 28
Palos Township
AQI 29
Proviso Township
AQI 32
Rich Township
AQI 32
River Forest Township
AQI 33
Riverside Township
AQI 31
Schaumburg Township
AQI 32
Stickney Township
AQI 31
Thornton Township
AQI 33
Wheeling Township
AQI 28
Worth Township
AQI 40
Data Sources
http://www.airnow.gov/

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Cities Nearby

Evergreen Park
AQI 31
Hometown
AQI 31
Oak Lawn
AQI 31
Burbank
AQI 31
Merrionette Park
AQI 26
Bedford Park
AQI 31
Chicago Ridge
AQI 26
Alsip
AQI 40
Calumet Park
AQI 26
Bridgeview
AQI 31
Blue Island
AQI 26