Today's Air Quality-St. Louis, MO

Good

Air quality is considered satisfactory, and air pollution poses little or no risk.

PM2.5 (Particulate matter less than 2.5 microns)

All Pollutants

PM2.5 (Particulate matter less than 2.5 microns)

Good

10.9 µg/m3

CO (Carbon Monoxide)

Good

220 µg/m3

NO2 (Nitrogen Dioxide)

Good

9.21 µg/m3

O3 (Ozone)

Good

79.62 µg/m3

PM10 (Particulate matter less than 10 microns)

Good

21.25 µg/m3

SO2 (Sulfur Dioxide)

Good

4.9 µg/m3