Missouri Air Quality Index (AQI) and Air Pollution
The Missouri Air Quality Index (AQI) today is 39 (Good). The dominant pollutant is O3. Other measured pollutants include NO₂ (3.7 ppb), SO₂ (0.3 ppb), CO (0.112 ppm), O₃ (0.042 ppm), PM10 (2.9µg/m³), PM2.5 (2 µg/m³), contributing to air pollution.
Live AQI
39(US-AQI)
Air Quality is
Good
Main Pollutant: O3
Last updated: just now
Good
Moderate
Poor
Unhealthy
Severe
Hazardous
0
50
100
150
200
300301+

14°C
57%
7 Km/h
Major Pollutants
PM2.5
Good2 µg/m³
PM10
Good2.9 µg/m³
O₃
Good0.042 ppm
CO
Good0.112 ppm
NO₂
Good3.7 ppb
SO₂
Good0.3 ppb