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  2. United States
  3. Missouri
  4. St. Louis County

St. Louis County

Missouri

2026-05-03 20:00
CAQI (Europe)
Medium
Pollutants|Pollens
O3
μg/m³
121.1
PM10
μg/m³
20.3
PM2.5
μg/m³
5.8
SO2
μg/m³
1.7
Weather
  • ℃
  • ℉
25℃
33%
32 kph
2 of 11
Historical Data
  • Hourly
  • Daily
  • CAQI (Europe)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • SO2
Places included
Airport Township
AQI 21
Bonhomme Township
AQI 18
Chesterfield Township
AQI 18
Clayton Township
AQI 21
Concord Township
AQI 18
Creve Coeur Township
AQI 21
Ferguson Township
AQI 21
Gravois Township
AQI 19
Hadley Township
AQI 21
Jefferson Township
AQI 21
Lemay Township
AQI 18
Lewis and Clark Township
AQI 21
Maryland Heights Township
AQI 50
Meramec Township
AQI 52
Midland Township
AQI 21
Missouri River Township
AQI 19
Normandy Township
AQI 21
Northwest Township
AQI 21
Norwood Township
AQI 24
Oakville Township
AQI 18
Queeny Township
AQI 18
Spanish Lake Township
AQI 27
St. Ferdinand Township
AQI 27
Tesson Ferry Township
AQI 18
University Township
AQI 21
Wildhorse Township
AQI 18
Data Sources
http://www.airnow.gov/

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