Toggle navigation
Places
AQI (India)
AQC (Australia)
AQHI (Canada)
AQI (China)
AQI (Netherlands)
AQI (US)
CAQI (Europe)
AQI (UK)
AQI (India)
English
Français
Deutsch
日本語
한국어
简体中文
繁體中文
North America
United States
Missouri
St. Louis
AQI (India)
AQC (Australia)
AQHI (Canada)
AQI (China)
AQI (Netherlands)
AQI (US)
CAQI (Europe)
AQI (UK)
AQI (India)
St. Louis
Missouri, United States
2026-09-19 17:00
AQI (India)
Moderately polluted
Pollutants
|
Pollens
O3
μg/m³
120
PM10
μg/m³
40
CO
μg/m³
312.5
PM2.5
μg/m³
7.8
SO2
μg/m³
10
NO2
μg/m³
9.7
Pollen
7.2
Weather
℃
℃
℉
33℃
49%
11 kph
0 of 11
Historical Data
Hourly
Hourly
Daily
AQI (India)
AQI (India)
Pollen
O3
PM10
CO
PM2.5
SO2
NO2
Places included
BLAIR STREET
AQI 130
BROADWAY (South)
AQI 12
Branch Street
AQI 51
Forest Park
AQI 19
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
Scan QR Code to Download App
iOS
Google Play
Download APK
Cities Nearby
St. Louis
AQI 130
Sauget
AQI 51
East Saint Louis
AQI 114
Brooklyn
AQI 51
Venice
AQI 51
Cahokia
AQI 51
Alorton
AQI 51
Fairmont City
AQI 30
Washington Park
AQI 30
Granite City
AQI 30
Hillsdale
AQI 29
Air Matters © 2026