Hong Kong air quality
Updated 12/10, 18:00
The data may not be up to date.
Current AQI
US EPA scale · observed at 18:00
101
Unhealthy for sensitive groupsChildren, older adults and people with heart or lung disease should reduce outdoor activity.
Pollutants
Current concentrations, µg/m³
| Pollutant | Concentration | Description |
|---|---|---|
| PM2.5 | 31,5 µg/m³ | Fine particles ≤ 2.5 µm |
| PM10 | 34,9 µg/m³ | Particles ≤ 10 µm |
| O₃ | 103 µg/m³ | Ozone |
| NO₂ | 65,8 µg/m³ | Nitrogen dioxide |
| SO₂ | 43,9 µg/m³ | Sulphur dioxide |
| CO | 246 µg/m³ | Carbon monoxide |
AQI, next 18 hours
Show data table
| Time | AQI | Level |
|---|---|---|
| 00:00 | 87 | Moderate |
| 01:00 | 87 | Moderate |
| 02:00 | 87 | Moderate |
| 03:00 | 87 | Moderate |
| 04:00 | 87 | Moderate |
| 05:00 | 88 | Moderate |
| 06:00 | 89 | Moderate |
| 07:00 | 91 | Moderate |
| 08:00 | 94 | Moderate |
| 09:00 | 96 | Moderate |
| 10:00 | 98 | Moderate |
| 11:00 | 100 | Moderate |
| 12:00 | 101 | Unhealthy for sensitive groups |
| 13:00 | 103 | Unhealthy for sensitive groups |
| 14:00 | 105 | Unhealthy for sensitive groups |
| 15:00 | 107 | Unhealthy for sensitive groups |
| 16:00 | 109 | Unhealthy for sensitive groups |
| 17:00 | 123 | Unhealthy for sensitive groups |