Hong Kong air quality
Updated 24/10, 14:00
The data may not be up to date.
Current AQI
US EPA scale · observed at 14:00
92
ModerateUnusually sensitive people should limit prolonged outdoor exertion.
Pollutants
Current concentrations, µg/m³
| Pollutant | Concentration | Description |
|---|---|---|
| PM2.5 | 34,7 µg/m³ | Fine particles ≤ 2.5 µm |
| PM10 | 36,2 µg/m³ | Particles ≤ 10 µm |
| O₃ | 159 µg/m³ | Ozone |
| NO₂ | 24,9 µg/m³ | Nitrogen dioxide |
| SO₂ | 29,9 µg/m³ | Sulphur dioxide |
| CO | 326 µg/m³ | Carbon monoxide |
AQI, next 10 hours
Show data table
| Time | AQI | Level |
|---|---|---|
| 04:00 | 104 | Unhealthy for sensitive groups |
| 05:00 | 104 | Unhealthy for sensitive groups |
| 06:00 | 103 | Unhealthy for sensitive groups |
| 07:00 | 103 | Unhealthy for sensitive groups |
| 08:00 | 102 | Unhealthy for sensitive groups |
| 09:00 | 102 | Unhealthy for sensitive groups |
| 10:00 | 101 | Unhealthy for sensitive groups |
| 11:00 | 101 | Unhealthy for sensitive groups |
| 12:00 | 100 | Moderate |
| 13:00 | 99 | Moderate |