Wong Tai Sin air quality
Updated 10/21 09:01
The data may not be up to date.
Current AQI
US EPA scale · observed at 09:00
138
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 | 58,9 µg/m³ | Fine particles ≤ 2.5 µm |
| PM10 | 59,1 µg/m³ | Particles ≤ 10 µm |
| O₃ | 45 µg/m³ | Ozone |
| NO₂ | 81,1 µg/m³ | Nitrogen dioxide |
| SO₂ | 65,2 µg/m³ | Sulphur dioxide |
| CO | 1.020 µg/m³ | Carbon monoxide |
AQI, next 19 hours
Show data table
| Time | AQI | Level |
|---|---|---|
| 14:00 | 151 | Unhealthy |
| 15:00 | 152 | Unhealthy |
| 16:00 | 152 | Unhealthy |
| 17:00 | 152 | Unhealthy |
| 18:00 | 152 | Unhealthy |
| 19:00 | 153 | Unhealthy |
| 20:00 | 153 | Unhealthy |
| 21:00 | 153 | Unhealthy |
| 22:00 | 152 | Unhealthy |
| 23:00 | 151 | Unhealthy |
| 00:00 | 147 | Unhealthy for sensitive groups |
| 01:00 | 141 | Unhealthy for sensitive groups |
| 02:00 | 133 | Unhealthy for sensitive groups |
| 03:00 | 125 | Unhealthy for sensitive groups |
| 04:00 | 117 | Unhealthy for sensitive groups |
| 05:00 | 109 | Unhealthy for sensitive groups |
| 06:00 | 101 | Unhealthy for sensitive groups |
| 07:00 | 96 | Moderate |
| 08:00 | 90 | Moderate |