AddAir quality in St. Louis
Air quality index (AQI⁺) and PM2.5 air pollution in St. Louis • 25 Followers • 14:00, Jun 01 Local time
30*
US AQI⁺Good
Main pollutant:
PM2.5
5.4 µg/m³
22°
31 km/h
43 %
Hourly forecast
St. Louis air quality index (AQI⁺) forecast
Daily forecast
St. Louis air quality index (AQI⁺) forecast
| Today | 29 | | 23° 10° |  31 km/h | 54% |
| Tue | 24 | | 23° 8° | 19 km/h | 46% |
| Wed | 30 | | 25° 10° | 12 km/h | 53% |
Air pollutants
What is the current air quality in St. Louis?
PM2.5 concentration is currently 1.1 times the World Health Organization annual PM2.5 guideline value.
Health recommendations
 Enjoy outdoor activities |
 Open your windows to bring clean, fresh air indoors Get a monitor |
Pollen
What is the pollen count in St. Louis today?
Index
Moderate
 Tree Low | 25% |
 Grass Moderate | 50% |
 Weed Moderate | 50% |
Source:
wetter.comHealth recommendations
Enjoy outdoor activities |
Open your windows to bring clean, fresh air indoors Get a monitor |
Pollen
What is the pollen count in St. Louis today?
Index
Moderate
Tree Low | 25% |
Grass Moderate | 50% |
Weed Moderate | 50% |
Source:
wetter.comMost polluted locations near St. Louis
Worldwide AQI⁺ ranking
Historic air quality near St. Louis
History
Historic air quality graph for St. Louis
Historic air quality near St. Louis
History
Historic air quality graph for St. Louis
Most polluted locations near St. Louis
Worldwide AQI⁺ ranking
