Ha Tsuen air quality
Updated 13/10, 11:01
The data may not be up to date.
Current AQI
US EPA scale · observed at 11:00
105
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 | 40,3 µg/m³ | Fine particles ≤ 2.5 µm |
| PM10 | 43,2 µg/m³ | Particles ≤ 10 µm |
| O₃ | 116 µg/m³ | Ozone |
| NO₂ | 67,7 µg/m³ | Nitrogen dioxide |
| SO₂ | 86,2 µg/m³ | Sulphur dioxide |
| CO | 664 µg/m³ | Carbon monoxide |
AQI, next 18 hours
Show data table
| Time | AQI | Level |
|---|---|---|
| 17:00 | 119 | Unhealthy for sensitive groups |
| 18:00 | 143 | Unhealthy for sensitive groups |
| 19:00 | 151 | Unhealthy |
| 20:00 | 144 | Unhealthy for sensitive groups |
| 21:00 | 126 | Unhealthy for sensitive groups |
| 22:00 | 129 | Unhealthy for sensitive groups |
| 23:00 | 132 | Unhealthy for sensitive groups |
| 00:00 | 136 | Unhealthy for sensitive groups |
| 01:00 | 140 | Unhealthy for sensitive groups |
| 02:00 | 145 | Unhealthy for sensitive groups |
| 03:00 | 149 | Unhealthy for sensitive groups |
| 04:00 | 151 | Unhealthy |
| 05:00 | 153 | Unhealthy |
| 06:00 | 154 | Unhealthy |
| 07:00 | 156 | Unhealthy |
| 08:00 | 157 | Unhealthy |
| 09:00 | 158 | Unhealthy |
| 10:00 | 158 | Unhealthy |