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

St. Louis County

Missouri

2026-05-03 21:00
CAQI (Europe)
Medium
Pollutants|Pollens
O3
μg/m³
123.2
PM10
μg/m³
18.3
PM2.5
μg/m³
5.9
SO2
μg/m³
0.9
Weather
  • ℃
  • ℉
25℃
33%
32 kph
1 of 11
Historical Data
  • Hourly
  • Daily
  • CAQI (Europe)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • SO2
Places included
Airport Township
AQI 20
Bonhomme Township
AQI 14
Chesterfield Township
AQI 14
Clayton Township
AQI 19
Concord Township
AQI 14
Creve Coeur Township
AQI 20
Ferguson Township
AQI 20
Gravois Township
AQI 16
Hadley Township
AQI 20
Jefferson Township
AQI 19
Lemay Township
AQI 14
Lewis and Clark Township
AQI 20
Maryland Heights Township
AQI 51
Meramec Township
AQI 52
Midland Township
AQI 20
Missouri River Township
AQI 16
Normandy Township
AQI 20
Northwest Township
AQI 20
Norwood Township
AQI 24
Oakville Township
AQI 14
Queeny Township
AQI 14
Spanish Lake Township
AQI 28
St. Ferdinand Township
AQI 28
Tesson Ferry Township
AQI 14
University Township
AQI 20
Wildhorse Township
AQI 14
Data Sources
http://www.airnow.gov/

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