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Chicago

Cook County, Illinois

2026-05-11 16:00
AQI (US)
Good
Pollutants|Pollens
O3
μg/m³
79.3
PM2.5
μg/m³
2.5
Weather
  • ℃
  • ℉
12℃
56%
26 kph
7 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM2.5
Places included
CHI_COM
AQI 36
CHI_SP
AQI 11
CHI_SWFP
AQI 34
CHI_TAFT
AQI 35
CHI_WASH
AQI 14
Data Sources
http://www.airnow.gov/

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