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St. Louis

Missouri, United States

2026-09-22 08:00
AQI (India)
Good
Pollutants|Pollens
O3
μg/m³
36.4
PM10
μg/m³
16
PM2.5
μg/m³
9.5
NO2
μg/m³
10.6
CO
μg/m³
250
SO2
μg/m³
1.7
Weather
  • ℃
  • ℉
19℃
89%
13 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (India)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
BLAIR STREET
AQI 37
BROADWAY (South)
AQI 5
Branch Street
AQI 45
Forest Park
AQI 14
Data Sources
http://www.airnow.gov/

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