1. North America
  2. United States
  3. Missouri
  4. St. Louis County

St. Louis County

Missouri

2026-05-04 01:00
CAQI (Europe)
Low
Pollutants|Pollens
O3
μg/m³
102.9
PM10
μg/m³
20.2
PM2.5
μg/m³
6.8
SO2
μg/m³
0.6
Weather
  • ℃
  • ℉
20℃
52%
2 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • CAQI (Europe)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • SO2
Places included
Airport Township
AQI 21
Bonhomme Township
AQI 17
Chesterfield Township
AQI 17
Clayton Township
AQI 21
Concord Township
AQI 17
Creve Coeur Township
AQI 21
Ferguson Township
AQI 21
Gravois Township
AQI 19
Hadley Township
AQI 21
Jefferson Township
AQI 20
Lemay Township
AQI 17
Lewis and Clark Township
AQI 21
Maryland Heights Township
AQI 44
Meramec Township
AQI 42
Midland Township
AQI 21
Missouri River Township
AQI 19
Normandy Township
AQI 21
Northwest Township
AQI 21
Norwood Township
AQI 26
Oakville Township
AQI 17
Queeny Township
AQI 17
Spanish Lake Township
AQI 30
St. Ferdinand Township
AQI 30
Tesson Ferry Township
AQI 17
University Township
AQI 21
Wildhorse Township
AQI 17
Data Sources
http://www.airnow.gov/

Get the App

Scan QR Code
Air Matters
Realtime broadcasting air quality information on your phone for more than 180 countries.

iPhone, iPad

Android

Cities Nearby

Huntleigh
AQI 17
Des Peres
AQI 17
Crystal Lake Park
AQI 17
Warson Woods
AQI 21
Rock Hill
AQI 21
Kirkwood
AQI 17
Frontenac
AQI 21
Glendale
AQI 17
Country Life Acres
AQI 17
Oakland
AQI 17
Westwood
AQI 21