April 2023
(1.4-30.4)
| Station | Distribution of Hourly AQHI (Number of Hours) | ||||
|---|---|---|---|---|---|
| Low | Moderate | High | Very High | Serious | |
| Central/Western | 249 | 464 | 4 | 3 | 0 |
| Southern | 322 | 390 | 2 | 5 | 1 |
| Eastern | 170 | 545 | 5 | 0 | 0 |
| Kwun Tong | 295 | 425 | 0 | 0 | 0 |
| Sham Shui Po | 264 | 452 | 4 | 0 | 0 |
| Kwai Chung | 267 | 446 | 7 | 0 | 0 |
| Tsuen Wan | 354 | 366 | 0 | 0 | 0 |
| Tseung Kwan O | 267 | 451 | 2 | 0 | 0 |
| Yuen Long | 382 | 329 | 8 | 1 | 0 |
| Tuen Mun | 264 | 441 | 9 | 6 | 0 |
| Tung Chung | 517 | 194 | 4 | 5 | 0 |
| Tai Po | 267 | 451 | 2 | 0 | 0 |
| Sha Tin | 302 | 418 | 0 | 0 | 0 |
| North | 278 | 439 | 3 | 0 | 0 |
| Tap Mun | 278 | 425 | 0 | 0 | 0 |
| Legend of Categories | Number of Hours | Percent |
|---|---|---|
 | 4476 | 42% |
 | 6236 | 58% |
 | 50 | 0% |
 | 20 | 0% |
 | 1 | 0% |
| Station | Distribution of Hourly AQHI (Number of Hours) | ||||
|---|---|---|---|---|---|
| Low | Moderate | High | Very High | Serious | |
| Causeway Bay | 200 | 514 | 1 | 5 | 0 |
| Central | 231 | 482 | 5 | 2 | 0 |
| Mong Kok | 144 | 565 | 10 | 1 | 0 |
| Legend of Categories | Number of Hours | Percent |
|---|---|---|
| 575 | 27% |
| 1561 | 72% |
| 16 | 1% |
| 8 | 0% |
| 0 | 0% |
Remarks:
(1) The total number of hourly AQHI readings at a station may be less than the total number of hours in the month because sometimes measurement may have to be suspended due to maintenance work at that station.
