North
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2024-05-09 10:00 | 18.4 | 147.5 | 2.3 | 435.7 | 29.7 | 20.5 |
| 2024-05-09 09:00 | 24.0 | 131.6 | 2.2 | 418.0 | 24.3 | 19.9 |
| 2024-05-09 08:00 | 21.1 | 124.9 | 2.2 | 451.5 | 24.6 | 18.3 |
| 2024-05-09 07:00 | 19.6 | 122.0 | 2.2 | 419.0 | 23.6 | 18.6 |
| 2024-05-09 06:00 | 12.3 | 130.3 | 2.4 | 412.7 | 18.8 | 15.2 |
| 2024-05-09 05:00 | 7.8 | 136.6 | 2.1 | 387.3 | 21.7 | 17.0 |
| 2024-05-09 04:00 | 9.2 | 132.5 | 2.6 | 395.6 | 22.6 | 19.0 |
| 2024-05-09 03:00 | 12.1 | 124.8 | 2.7 | 438.2 | 18.7 | - |
| 2024-05-09 02:00 | 27.9 | 105.3 | 2.6 | 510.4 | 18.2 | - |
| 2024-05-09 01:00 | 21.2 | 119.5 | 1.9 | 524.6 | 18.8 | - |
| 2024-05-09 00:00 | 26.3 | 115.7 | 1.6 | 540.5 | 16.5 | - |
| 2024-05-08 23:00 | 22.9 | 126.1 | 1.4 | 513.8 | 20.4 | 18.4 |
| 2024-05-08 22:00 | 18.8 | 137.6 | 1.1 | 587.8 | 25.1 | 21.1 |
| 2024-05-08 21:00 | 17.1 | 144.2 | 2.1 | 665.5 | 20.2 | - |
| 2024-05-08 20:00 | 22.1 | 154.5 | 2.3 | 596.7 | 21.4 | - |
| 2024-05-08 19:00 | 29.5 | 124.0 | 1.6 | 884.7 | 24.1 | - |
| 2024-05-08 18:00 | 30.3 | 118.6 | 1.8 | 536.4 | 18.2 | - |
| 2024-05-08 17:00 | 18.4 | 124.5 | 1.6 | 391.5 | 12.8 | - |
| 2024-05-08 16:00 | 18.9 | 125.8 | 1.8 | 397.2 | 10.7 | - |
| 2024-05-08 15:00 | 20.5 | 125.6 | 2.1 | 443.4 | 9.0 | - |
| 2024-05-08 14:00 | 20.1 | 119.7 | 1.6 | 420.9 | - | - |
| 2024-05-08 13:00 | - | 97.6 | 0.3 | 447.0 | - | - |
| 2024-05-08 12:00 | - | 86.5 | - | - | - | - |
| 2024-05-08 11:00 | 34.5 | 67.3 | - | 417.6 | - | - |
Remarks:
(1) Time shown is in Hong Kong time.
(2) Concentration shown is in microgram per cubic metre (µg/m3).
(3) Abbreviation:
NO2 - nitrogen dioxide, O3 - ozone,
SO2 - sulphur dioxide, CO - carbon monoxide,
PM10 - respirable suspended particulates,
PM2.5 - fine suspended particulates
(4) The pollutant concentration is based on real time data taken directly from EPD's Air Quality Monitoring Network.