Air quality in Saint-Louis today
Senegal · Updated Friday 06:00 (local time) · Model data from the Copernicus Atmosphere Monitoring Service
Good European AQI
Clean air. A great time to be outside.
Pollutants right now
| Pollutant | Value | Level |
|---|---|---|
| PM2.5 | 3 µg/m³ | Good |
| PM10 | 5 µg/m³ | Good |
| NO₂ | 2 µg/m³ | Good |
| O₃ | 40 µg/m³ | Good |
The pollutant that matters most in Saint-Louis right now is O₃.
Forecast: next 24 hours
The air in Saint-Louis should stay good to fair for the next 24 hours. The cleanest hour is expected around Fri 07:00.
| Time | AQI | Level | PM2.5 |
|---|---|---|---|
| Fri 07:00 | 13 | Good | 2 |
| Fri 10:00 | 14 | Good | 2 |
| Fri 13:00 | 19 | Good | 3 |
| Fri 16:00 | 20 | Good | 4 |
| Fri 19:00 | 18 | Good | 3 |
| Fri 22:00 | 15 | Good | 3 |
| Sat 01:00 | 14 | Good | 4 |
| Sat 04:00 | 14 | Good | 4 |
The last 30 days
Over the last 30 days the average daily AQI in Saint-Louis was 57, with 9 day(s) rated poor or worse. The cleanest day was 3 Sept, the most polluted 18 Sept.
Questions and answers
- Is the air in Saint-Louis good today?
- Right now the European Air Quality Index in Saint-Louis is 13, which is good. Clean air. A great time to be outside.
- What pollutes the air in Saint-Louis?
- At the moment O₃ contributes most to the air quality index in Saint-Louis. The index takes the worst of fine particles (PM2.5), coarser particles (PM10), nitrogen dioxide, ozone and sulphur dioxide.
- When will the air in Saint-Louis be cleanest?
- The air in Saint-Louis should stay good to fair for the next 24 hours. The cleanest hour is expected around Fri 07:00.
- Where does this data come from?
- Wheezair shows model estimates from the Copernicus Atmosphere Monitoring Service (CAMS), served by Open-Meteo: about 11 km resolution in Europe and 40 km elsewhere, updated daily. They are not station measurements, so a busy street can be worse than its city's value.