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

St. Louis County

Missouri

2026-10-12 00:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
111.4
PM10
μg/m³
29.5
NO2
μg/m³
57.9
PM2.5
μg/m³
10
SO2
μg/m³
4.6
Weather
  • ℃
  • ℉
25℃
58%
11 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • O3
  • PM10
  • NO2
  • PM2.5
  • SO2
Places included
Airport Township
AQI 32
Bonhomme Township
AQI 26
Chesterfield Township
AQI 26
Clayton Township
AQI 31
Concord Township
AQI 26
Creve Coeur Township
AQI 32
Ferguson Township
AQI 32
Gravois Township
AQI 28
Hadley Township
AQI 32
Jefferson Township
AQI 31
Lemay Township
AQI 26
Lewis and Clark Township
AQI 32
Maryland Heights Township
AQI 37
Meramec Township
AQI 33
Midland Township
AQI 32
Missouri River Township
AQI 28
Normandy Township
AQI 32
Northwest Township
AQI 32
Norwood Township
AQI 32
Oakville Township
AQI 26
Queeny Township
AQI 26
Spanish Lake Township
AQI 32
St. Ferdinand Township
AQI 32
Tesson Ferry Township
AQI 26
University Township
AQI 32
Wildhorse Township
AQI 26
Data Sources
http://www.airnow.gov/

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