Air Quality Forecast for St. Louis, MO - The Weather Channel | weather.com
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Today's Air Quality-St. Louis, MO

64
Moderate

Air quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.

Primary Pollutant:

PM2.5 (Particulate matter less than 2.5 microns)

All Pollutants

64
PM2.5 (Particulate matter less than 2.5 microns)

Moderate

15.19 µg/m3
6
CO (Carbon Monoxide)

Good

480 µg/m3
12
NO2 (Nitrogen Dioxide)

Good

24.95 µg/m3
5
O3 (Ozone)

Good

26.99 µg/m3
24
PM10 (Particulate matter less than 10 microns)

Good

21.3 µg/m3
1
SO2 (Sulfur Dioxide)

Good

1.9 µg/m3
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