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  4. St. Louis County

St. Louis County

Missouri

2026-10-11 13:00
AQI (US)
Good
Pollutants|Pollens
PM2.5
μg/m³
7.6
PM10
μg/m³
30.1
NO2
μg/m³
31.2
O3
μg/m³
11.8
SO2
μg/m³
1.7
Weather
  • ℃
  • ℉
16℃
80%
0 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • PM10
  • NO2
  • O3
  • SO2
Places included
Airport Township
AQI 42
Bonhomme Township
AQI 41
Chesterfield Township
AQI 40
Clayton Township
AQI 42
Concord Township
AQI 41
Creve Coeur Township
AQI 42
Ferguson Township
AQI 51
Gravois Township
AQI 42
Hadley Township
AQI 42
Jefferson Township
AQI 42
Lemay Township
AQI 41
Lewis and Clark Township
AQI 42
Maryland Heights Township
AQI 42
Meramec Township
AQI 39
Midland Township
AQI 42
Missouri River Township
AQI 42
Normandy Township
AQI 48
Northwest Township
AQI 42
Norwood Township
AQI 48
Oakville Township
AQI 39
Queeny Township
AQI 39
Spanish Lake Township
AQI 48
St. Ferdinand Township
AQI 52
Tesson Ferry Township
AQI 39
University Township
AQI 42
Wildhorse Township
AQI 39
Data Sources
http://www.airnow.gov/

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Cities Nearby

Huntleigh
AQI 42
Des Peres
AQI 42
Crystal Lake Park
AQI 42
Warson Woods
AQI 42
Rock Hill
AQI 42
Kirkwood
AQI 42
Frontenac
AQI 42
Glendale
AQI 42
Country Life Acres
AQI 42
Oakland
AQI 42
Westwood
AQI 42