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  4. Cook County

Cook County

Illinois

2026-09-15 21:00
AQI (India)
Moderately polluted
Pollutants|Pollens
O3
μg/m³
107.1
PM10
μg/m³
19.1
PM2.5
μg/m³
9.2
Weather
  • ℃
  • ℉
29℃
73%
17 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (India)
  • Pollen
  • O3
  • PM10
  • PM2.5
Places included
Barrington Township
AQI 15
Berwyn Township
AQI 19
Bloom Township
AQI 41
Bremen Township
AQI 20
Calumet Township
AQI 41
Chicago
AQI 120
Cicero Township
AQI 111
Elk Grove Township
AQI 16
Evanston Township
AQI 111
Hanover Township
AQI 15
Lemont Township
AQI 111
Leyden Township
AQI 86
Lyons Township
AQI 15
Maine Township
AQI 105
New Trier Township
AQI 15
Niles Township
AQI 15
Northfield Township
AQI 117
Norwood Park Township
AQI 21
Oak Park Township
AQI 19
Orland Township
AQI 21
Palatine Township
AQI 15
Palos Township
AQI 17
Proviso Township
AQI 19
Rich Township
AQI 17
River Forest Township
AQI 19
Riverside Township
AQI 15
Schaumburg Township
AQI 21
Stickney Township
AQI 15
Thornton Township
AQI 41
Wheeling Township
AQI 15
Worth Township
AQI 133
Data Sources
http://www.airnow.gov/

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Cities Nearby

Evergreen Park
AQI 14
Hometown
AQI 14
Oak Lawn
AQI 14
Burbank
AQI 14
Merrionette Park
AQI 21
Bedford Park
AQI 14
Chicago Ridge
AQI 21
Alsip
AQI 133
Calumet Park
AQI 21
Bridgeview
AQI 15
Blue Island
AQI 21