North
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2024-05-13 01:00 | 43.9 | 17.1 | 1.5 | 417.8 | 28.8 | 23.9 |
| 2024-05-13 00:00 | 39.1 | 26.7 | 1.1 | 381.6 | 23.3 | 22.0 |
| 2024-05-12 23:00 | 26.2 | 48.4 | 0.9 | 366.6 | 20.1 | 19.3 |
| 2024-05-12 22:00 | 22.2 | 56.1 | 0.8 | 366.0 | 20.0 | 18.4 |
| 2024-05-12 21:00 | 20.7 | 58.9 | 0.7 | 332.4 | 17.0 | - |
| 2024-05-12 20:00 | 25.6 | 62.4 | 0.8 | 305.5 | 14.1 | - |
| 2024-05-12 19:00 | 25.4 | 61.3 | 0.7 | 302.6 | 15.6 | - |
| 2024-05-12 18:00 | 24.2 | 77.4 | 0.7 | 339.3 | 23.2 | 18.4 |
| 2024-05-12 17:00 | 36.8 | 71.8 | 0.8 | 459.7 | 26.3 | 20.6 |
| 2024-05-12 16:00 | 32.2 | 90.7 | 1.0 | 346.4 | 23.3 | 18.2 |
| 2024-05-12 15:00 | 34.4 | 102.4 | 1.1 | 381.7 | 28.7 | 17.1 |
| 2024-05-12 14:00 | 17.5 | 107.8 | 1.2 | 298.1 | 41.9 | 18.9 |
| 2024-05-12 13:00 | 18.5 | 91.7 | 1.1 | 324.8 | 38.8 | 20.2 |
| 2024-05-12 12:00 | 18.0 | 71.6 | 1.0 | 263.6 | 28.6 | 19.3 |
| 2024-05-12 11:00 | 22.7 | 61.6 | 1.5 | 288.3 | 20.7 | 15.7 |
| 2024-05-12 10:00 | 18.9 | 54.4 | 1.7 | 284.7 | 21.7 | 14.7 |
| 2024-05-12 09:00 | 30.2 | 41.8 | 1.5 | 386.5 | 28.0 | 17.3 |
| 2024-05-12 08:00 | 22.5 | 37.8 | 1.5 | 344.9 | 26.1 | 21.4 |
| 2024-05-12 07:00 | 18.1 | 45.6 | 1.0 | 288.3 | 22.7 | 18.5 |
| 2024-05-12 06:00 | 17.7 | 58.9 | 0.9 | 257.4 | 22.0 | 13.7 |
| 2024-05-12 05:00 | 11.5 | 71.8 | 1.3 | 386.1 | 22.0 | 13.7 |
| 2024-05-12 04:00 | 12.6 | 76.1 | 1.6 | 339.8 | 25.2 | 13.6 |
| 2024-05-12 03:00 | 8.1 | 89.3 | 1.5 | 352.5 | 26.6 | 16.2 |
| 2024-05-12 02:00 | 11.5 | 83.6 | 1.4 | 346.6 | 23.5 | 18.7 |
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.