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  3. Missouri
  4. St. Louis County

St. Louis County

Missouri

2026-10-18 10:00
AQI (US)
Good
Pollutants|Pollens
PM2.5
μg/m³
7.2
PM10
μg/m³
13.9
NO2
μg/m³
21.6
O3
μg/m³
17.1
SO2
μg/m³
0.9
Weather
  • ℃
  • ℉
5℃
90%
2 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • PM10
  • NO2
  • O3
  • SO2
Places included
Airport Township
AQI 39
Bonhomme Township
AQI 41
Chesterfield Township
AQI 43
Clayton Township
AQI 39
Concord Township
AQI 41
Creve Coeur Township
AQI 39
Ferguson Township
AQI 34
Gravois Township
AQI 39
Hadley Township
AQI 39
Jefferson Township
AQI 39
Lemay Township
AQI 41
Lewis and Clark Township
AQI 39
Maryland Heights Township
AQI 39
Meramec Township
AQI 45
Midland Township
AQI 39
Missouri River Township
AQI 39
Normandy Township
AQI 36
Northwest Township
AQI 39
Norwood Township
AQI 39
Oakville Township
AQI 45
Queeny Township
AQI 45
Spanish Lake Township
AQI 45
St. Ferdinand Township
AQI 39
Tesson Ferry Township
AQI 45
University Township
AQI 39
Wildhorse Township
AQI 45
Data Sources
http://www.airnow.gov/

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Cities Nearby

Huntleigh
AQI 39
Des Peres
AQI 39
Crystal Lake Park
AQI 39
Warson Woods
AQI 39
Rock Hill
AQI 39
Kirkwood
AQI 39
Frontenac
AQI 39
Glendale
AQI 39
Country Life Acres
AQI 39
Oakland
AQI 39
Westwood
AQI 39