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Air quality in Saint-Louis
Air quality index (AQI) and PM2.5 air pollution in Saint-Louis
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Saint-Louis Air Quality Map
Real-time Saint-Louis air pollution map
AIR QUALITY DATA SOURCE
* AQI modeled using satellite data Learn more
Weather
What is the current weather in Saint-Louis?
| Weather | Clear sky |
| Temperature | 71.6°F |
| Humidity | 60% |
| Wind | 18 mp/h |
| Pressure | 29.8 Hg |
3D animated air pollution map
US AQI
121*
live AQI index
Unhealthy for sensitive groups
Overview
What is the current air quality in Saint-Louis?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Unhealthy for sensitive groups | 121* US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 43.7*µg/m³ | |
!
PM2.5
x8.7
PM2.5 concentration in Saint-Louis is currently 8.7 times the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in Saint-Louis?
 | Reduce outdoor exercise |
 | Close your windows to avoid dirty outdoor air GET A MONITOR |
 | Sensitive groups should wear a mask outdoors GET A MASK |
 | Run an air purifier GET AN AIR PURIFIER |
Forecast
Saint-Louis air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Today | Unhealthy for sensitive groups 121 AQI US |  | 78.8° 69.8° |  17.9 mp/h |
| Friday, May 3 | Unhealthy for sensitive groups 135 AQI US | | 75.2° 69.8° | 17.9 mp/h |
| Saturday, May 4 | Unhealthy for sensitive groups 124 AQI US | | 77° 68° | 17.9 mp/h |
| Sunday, May 5 | Unhealthy for sensitive groups 118 AQI US | | 77° 68° | 20.1 mp/h |
| Monday, May 6 | Unhealthy for sensitive groups 111 AQI US | | 75.2° 68° | 17.9 mp/h |
| Tuesday, May 7 | Moderate 76 AQI US  | | 73.4° 68° | 15.7 mp/h |
| Wednesday, May 8 | Moderate 58 AQI US | | 73.4° 68° | 11.2 mp/h |
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News
The latest air quality news and resources.
Where is the cleanest air quality in Saint-Louis?
No locations are available.
AQI US, Metric