Semnan air quality
Updated 01/10, 04:57
The data may not be up to date.
Current AQI
US EPA scale · observed at 04:30
43
GoodAir quality is good; enjoy outdoor activities.
Pollutants
Current concentrations, µg/m³
| Pollutant | Concentration | Description |
|---|---|---|
| PM2.5 | 1,7 µg/m³ | Fine particles ≤ 2.5 µm |
| PM10 | 2,3 µg/m³ | Particles ≤ 10 µm |
| O₃ | 25 µg/m³ | Ozone |
| NO₂ | 8,2 µg/m³ | Nitrogen dioxide |
| SO₂ | 0,5 µg/m³ | Sulphur dioxide |
| CO | 180 µg/m³ | Carbon monoxide |