AddAir quality in St. Louis County
Air quality index (AQI⁺) and PM2.5 air pollution in St. Louis County • 1 Follower • 17:00, Oct 23 Local time
45
US AQI⁺Good
Main pollutant:
O₃
98 µg/m³
17°
18 km/h
65 %
Hourly forecast
St. Louis County air quality index (AQI⁺) forecast
Daily forecast
St. Louis County air quality index (AQI⁺) forecast
| Today | 45 | | 18° 7° |  21 km/h | 80% |
| Sat | 55 |  | 16° 8° | 25 km/h | 78% |
| Sun | 12 | | 10° 4° | 15 km/h | 44% |
Air pollutants
What is the current air quality in St. Louis County?
PM2.5 concentration is currently 1.3 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 |
Protect yourself from air pollution in St. Louis County
Air Purifiers
Face Masks
Air Quality Monitors
Pollen
What is the pollen count in St. Louis County today?
Index
Low
 Tree None | 0% |
 Grass None | 0% |
 Weed Low | 25% |
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 County today?
Index
Low
Tree None | 0% |
Grass None | 0% |
Weed Low | 25% |
Source:
wetter.comProtect yourself from air pollution in St. Louis County
Air Purifiers
Face Masks
Air Quality Monitors
Most polluted locations near St. Louis County
Worldwide AQI⁺ ranking
Station ranking
Real-time AQI⁺ station ranking for stations in St. Louis County
Historic air quality near St. Louis County
History
Historic air quality graph for St. Louis County
Historic air quality near St. Louis County
History
Historic air quality graph for St. Louis County
Most polluted locations near St. Louis County
Worldwide AQI⁺ rankingStation ranking
Real-time AQI⁺ station ranking for stations in St. Louis County
Measure your own air quality
Get a monitor and contribute air quality data in your city.
