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St. Louis

Missouri, United States

2026-09-20 22:00
AQI (India)
Moderately polluted
Pollutants|Pollens
O3
μg/m³
143.6
PM10
μg/m³
15.5
CO
μg/m³
250
PM2.5
μg/m³
5.8
NO2
μg/m³
7.7
SO2
μg/m³
5.1
Weather
  • ℃
  • ℉
32℃
48%
7 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (India)
  • Pollen
  • O3
  • PM10
  • CO
  • PM2.5
  • NO2
  • SO2
Places included
BLAIR STREET
AQI 165
BROADWAY (South)
AQI 11
Branch Street
AQI 17
Forest Park
AQI 13
Data Sources
http://www.airnow.gov/

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