San Jose air quality
Updated 16/10, 11:00
The data may not be up to date.
Current AQI
US EPA scale · observed at 11:00
21
GoodAir quality is good; enjoy outdoor activities.
Pollutants
Current concentrations, µg/m³
| Pollutant | Concentration | Description |
|---|---|---|
| PM2.5 | 3,3 µg/m³ | Fine particles ≤ 2.5 µm |
| PM10 | 4,6 µg/m³ | Particles ≤ 10 µm |
| O₃ | 56 µg/m³ | Ozone |
| NO₂ | 0,3 µg/m³ | Nitrogen dioxide |
| SO₂ | 2,6 µg/m³ | Sulphur dioxide |
| CO | 120 µg/m³ | Carbon monoxide |
AQI, next 10 hours
Show data table
| Time | AQI | Level |
|---|---|---|
| 01:00 | 20 | Good |
| 02:00 | 19 | Good |
| 03:00 | 18 | Good |
| 04:00 | 18 | Good |
| 05:00 | 18 | Good |
| 06:00 | 18 | Good |
| 07:00 | 17 | Good |
| 08:00 | 17 | Good |
| 09:00 | 17 | Good |
| 10:00 | 18 | Good |