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  3. Missouri
  4. St. Louis County

St. Louis County

Missouri

2026-10-15 04:00
AQI (US)
Good
Pollutants|Pollens
PM2.5
μg/m³
7.2
PM10
μg/m³
23.6
NO2
μg/m³
17.5
O3
μg/m³
4.3
SO2
μg/m³
1.4
Weather
  • ℃
  • ℉
20℃
94%
3 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • PM10
  • NO2
  • O3
  • SO2
Places included
Airport Township
AQI 34
Bonhomme Township
AQI 38
Chesterfield Township
AQI 41
Clayton Township
AQI 34
Concord Township
AQI 38
Creve Coeur Township
AQI 34
Ferguson Township
AQI 41
Gravois Township
AQI 34
Hadley Township
AQI 34
Jefferson Township
AQI 34
Lemay Township
AQI 38
Lewis and Clark Township
AQI 34
Maryland Heights Township
AQI 34
Meramec Township
AQI 45
Midland Township
AQI 34
Missouri River Township
AQI 34
Normandy Township
AQI 38
Northwest Township
AQI 34
Norwood Township
AQI 51
Oakville Township
AQI 45
Queeny Township
AQI 45
Spanish Lake Township
AQI 57
St. Ferdinand Township
AQI 56
Tesson Ferry Township
AQI 45
University Township
AQI 34
Wildhorse Township
AQI 45
Data Sources
http://www.airnow.gov/

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Cities Nearby

Huntleigh
AQI 34
Des Peres
AQI 34
Crystal Lake Park
AQI 34
Warson Woods
AQI 34
Rock Hill
AQI 34
Kirkwood
AQI 34
Frontenac
AQI 34
Glendale
AQI 34
Country Life Acres
AQI 34
Oakland
AQI 34
Westwood
AQI 34