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

St. Louis County

Missouri

2026-08-23 11:00
CAQI (Europe)
Very Low
Pollutants|Pollens
PM10
μg/m³
20.5
PM2.5
μg/m³
8
O3
μg/m³
23.6
NO2
μg/m³
18.9
SO2
μg/m³
0.9
Weather
  • ℃
  • ℉
19℃
91%
3 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • CAQI (Europe)
  • Pollen
  • PM10
  • PM2.5
  • O3
  • NO2
  • SO2
Places included
Airport Township
AQI 23
Bonhomme Township
AQI 18
Chesterfield Township
AQI 18
Clayton Township
AQI 22
Concord Township
AQI 18
Creve Coeur Township
AQI 23
Ferguson Township
AQI 23
Gravois Township
AQI 20
Hadley Township
AQI 23
Jefferson Township
AQI 22
Lemay Township
AQI 18
Lewis and Clark Township
AQI 23
Maryland Heights Township
AQI 23
Meramec Township
AQI 18
Midland Township
AQI 23
Missouri River Township
AQI 20
Normandy Township
AQI 23
Northwest Township
AQI 23
Norwood Township
AQI 21
Oakville Township
AQI 18
Queeny Township
AQI 18
Spanish Lake Township
AQI 19
St. Ferdinand Township
AQI 19
Tesson Ferry Township
AQI 18
University Township
AQI 23
Wildhorse Township
AQI 18
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 18
Des Peres
AQI 18
Crystal Lake Park
AQI 18
Warson Woods
AQI 23
Rock Hill
AQI 23
Kirkwood
AQI 18
Frontenac
AQI 23
Glendale
AQI 18
Country Life Acres
AQI 18
Oakland
AQI 18
Westwood
AQI 23