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  3. Missouri
  4. St. Louis County

St. Louis County

Missouri

2026-08-22 17:00
CAQI (Europe)
Low
Pollutants|Pollens
O3
μg/m³
80.4
PM10
μg/m³
22.2
PM2.5
μg/m³
6.4
NO2
μg/m³
1.4
SO2
μg/m³
0.6
Weather
  • ℃
  • ℉
29℃
54%
10 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • CAQI (Europe)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • NO2
  • SO2
Places included
Airport Township
AQI 23
Bonhomme Township
AQI 21
Chesterfield Township
AQI 21
Clayton Township
AQI 23
Concord Township
AQI 21
Creve Coeur Township
AQI 23
Ferguson Township
AQI 23
Gravois Township
AQI 22
Hadley Township
AQI 23
Jefferson Township
AQI 23
Lemay Township
AQI 21
Lewis and Clark Township
AQI 23
Maryland Heights Township
AQI 34
Meramec Township
AQI 34
Midland Township
AQI 23
Missouri River Township
AQI 22
Normandy Township
AQI 23
Northwest Township
AQI 23
Norwood Township
AQI 23
Oakville Township
AQI 21
Queeny Township
AQI 21
Spanish Lake Township
AQI 23
St. Ferdinand Township
AQI 23
Tesson Ferry Township
AQI 21
University Township
AQI 23
Wildhorse Township
AQI 21
Data Sources
http://www.airnow.gov/

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Cities Nearby

Huntleigh
AQI 21
Des Peres
AQI 21
Crystal Lake Park
AQI 21
Warson Woods
AQI 23
Rock Hill
AQI 23
Kirkwood
AQI 21
Frontenac
AQI 23
Glendale
AQI 21
Country Life Acres
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Oakland
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Westwood
AQI 23