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  4. St. Louis County

St. Louis County

Missouri

2026-08-22 15:00
CAQI (Europe)
Low
Pollutants|Pollens
PM10
μg/m³
28.1
O3
μg/m³
65.4
PM2.5
μg/m³
6.8
NO2
μg/m³
1.2
SO2
μg/m³
0.9
Weather
  • ℃
  • ℉
27℃
69%
17 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • CAQI (Europe)
  • Pollen
  • PM10
  • O3
  • PM2.5
  • NO2
  • SO2
Places included
Airport Township
AQI 29
Bonhomme Township
AQI 28
Chesterfield Township
AQI 28
Clayton Township
AQI 29
Concord Township
AQI 28
Creve Coeur Township
AQI 29
Ferguson Township
AQI 29
Gravois Township
AQI 29
Hadley Township
AQI 29
Jefferson Township
AQI 29
Lemay Township
AQI 28
Lewis and Clark Township
AQI 29
Maryland Heights Township
AQI 29
Meramec Township
AQI 28
Midland Township
AQI 29
Missouri River Township
AQI 29
Normandy Township
AQI 29
Northwest Township
AQI 29
Norwood Township
AQI 27
Oakville Township
AQI 28
Queeny Township
AQI 28
Spanish Lake Township
AQI 24
St. Ferdinand Township
AQI 24
Tesson Ferry Township
AQI 28
University Township
AQI 29
Wildhorse Township
AQI 28
Data Sources
http://www.airnow.gov/

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Cities Nearby

Huntleigh
AQI 28
Des Peres
AQI 28
Crystal Lake Park
AQI 28
Warson Woods
AQI 29
Rock Hill
AQI 29
Kirkwood
AQI 28
Frontenac
AQI 29
Glendale
AQI 28
Country Life Acres
AQI 28
Oakland
AQI 28
Westwood
AQI 29