Castanhal air quality
Updated 30/09, 21:00
The data may not be up to date.
Current AQI
US EPA scale · observed at 21:00
30
GoodAir quality is good; enjoy outdoor activities.
Pollutants
Current concentrations, µg/m³
| Pollutant | Concentration | Description |
|---|---|---|
| PM2.5 | 4,3 µg/m³ | Fine particles ≤ 2.5 µm |
| PM10 | 6,2 µg/m³ | Particles ≤ 10 µm |
| O₃ | 34 µg/m³ | Ozone |
| NO₂ | 2,2 µg/m³ | Nitrogen dioxide |
| SO₂ | 0,6 µg/m³ | Sulphur dioxide |
| CO | 99 µg/m³ | Carbon monoxide |