San air quality
Updated 10. 21. 00:01
The data may not be up to date.
Current AQI
US EPA scale · observed at 00:00
63
ModerateUnusually sensitive people should limit prolonged outdoor exertion.
Pollutants
Current concentrations, µg/m³
| Pollutant | Concentration | Description |
|---|---|---|
| PM2.5 | 19,8 µg/m³ | Fine particles ≤ 2.5 µm |
| PM10 | 45,3 µg/m³ | Particles ≤ 10 µm |
| O₃ | 32 µg/m³ | Ozone |
| NO₂ | 10,1 µg/m³ | Nitrogen dioxide |
| SO₂ | 1 µg/m³ | Sulphur dioxide |
| CO | 171 µg/m³ | Carbon monoxide |
AQI, next 4 hours
Show data table
| Time | AQI | Level |
|---|---|---|
| 20:00 | 75 | Moderate |
| 21:00 | 76 | Moderate |
| 22:00 | 77 | Moderate |
| 23:00 | 78 | Moderate |