Today's Air Quality-Chicago, IL

Unhealthy for Sensitive Groups

Members of sensitive groups may experience health effects. The general public is not likely to be affected.

PM2.5 (Particulate matter less than 2.5 microns)

All Pollutants

PM2.5 (Particulate matter less than 2.5 microns)

Unhealthy for Sensitive Groups

39.77 µg/m3

CO (Carbon Monoxide)

Good

350 µg/m3

NO2 (Nitrogen Dioxide)

Good

14.41 µg/m3

O3 (Ozone)

Good

71.57 µg/m3

PM10 (Particulate matter less than 10 microns)

Good

50.97 µg/m3

SO2 (Sulfur Dioxide)

Good

3.28 µg/m3