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  4. St. Louis County

St. Louis County

Missouri

2026-10-12 15:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
102.9
PM10
μg/m³
27.8
NO2
μg/m³
25.5
PM2.5
μg/m³
6.1
SO2
μg/m³
11.1
Weather
  • ℃
  • ℉
29℃
53%
10 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • O3
  • PM10
  • NO2
  • PM2.5
  • SO2
Places included
Airport Township
AQI 33
Bonhomme Township
AQI 16
Chesterfield Township
AQI 16
Clayton Township
AQI 30
Concord Township
AQI 16
Creve Coeur Township
AQI 33
Ferguson Township
AQI 33
Gravois Township
AQI 22
Hadley Township
AQI 33
Jefferson Township
AQI 29
Lemay Township
AQI 16
Lewis and Clark Township
AQI 33
Maryland Heights Township
AQI 33
Meramec Township
AQI 33
Midland Township
AQI 33
Missouri River Township
AQI 22
Normandy Township
AQI 33
Northwest Township
AQI 33
Norwood Township
AQI 43
Oakville Township
AQI 16
Queeny Township
AQI 16
Spanish Lake Township
AQI 52
St. Ferdinand Township
AQI 52
Tesson Ferry Township
AQI 16
University Township
AQI 33
Wildhorse Township
AQI 16
Data Sources
http://www.airnow.gov/

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Cities Nearby

Huntleigh
AQI 16
Des Peres
AQI 16
Crystal Lake Park
AQI 16
Warson Woods
AQI 33
Rock Hill
AQI 33
Kirkwood
AQI 16
Frontenac
AQI 33
Glendale
AQI 16
Country Life Acres
AQI 16
Oakland
AQI 16
Westwood
AQI 33