Helsinki sub-region air quality
Updated 24/10, 08:00
The data may not be up to date.
Current AQI
US EPA scale · observed at 08:00
51
ModerateUnusually sensitive people should limit prolonged outdoor exertion.
Pollutants
Current concentrations, µg/m³
| Pollutant | Concentration | Description |
|---|---|---|
| PM2.5 | 2,5 µg/m³ | Fine particles ≤ 2.5 µm |
| PM10 | 3,3 µg/m³ | Particles ≤ 10 µm |
| O₃ | 54 µg/m³ | Ozone |
| NO₂ | 4,7 µg/m³ | Nitrogen dioxide |
| SO₂ | 0,5 µg/m³ | Sulphur dioxide |
| CO | 167 µg/m³ | Carbon monoxide |
AQI, next 17 hours
Show data table
| Time | AQI | Level |
|---|---|---|
| 15:00 | 41 | Good |
| 16:00 | 40 | Good |
| 17:00 | 39 | Good |
| 18:00 | 37 | Good |
| 19:00 | 36 | Good |
| 20:00 | 34 | Good |
| 21:00 | 33 | Good |
| 22:00 | 32 | Good |
| 23:00 | 30 | Good |
| 00:00 | 29 | Good |
| 01:00 | 28 | Good |
| 02:00 | 28 | Good |
| 03:00 | 28 | Good |
| 03:00 | 28 | Good |
| 04:00 | 28 | Good |
| 05:00 | 28 | Good |
| 06:00 | 27 | Good |