North
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2024-05-15 22:00 | 24.1 | 154.7 | 1.7 | 455.7 | 17.5 | 16.5 |
| 2024-05-15 21:00 | 17.6 | 162.7 | 1.6 | 304.0 | 16.9 | 16.6 |
| 2024-05-15 20:00 | 19.9 | 162.4 | 1.6 | 374.0 | 18.4 | 15.7 |
| 2024-05-15 19:00 | 30.6 | 156.3 | 1.9 | 610.2 | 15.8 | - |
| 2024-05-15 18:00 | 21.4 | 164.4 | 2.0 | 547.2 | 19.1 | - |
| 2024-05-15 17:00 | 16.8 | 171.6 | 2.2 | 362.2 | 23.5 | 21.5 |
| 2024-05-15 16:00 | 13.8 | 176.1 | 2.1 | 318.4 | 16.6 | - |
| 2024-05-15 15:00 | 14.2 | 168.2 | 2.2 | 325.4 | 16.5 | 16.4 |
| 2024-05-15 14:00 | 16.4 | 161.8 | 2.3 | 333.8 | 24.1 | 16.7 |
| 2024-05-15 13:00 | 14.2 | 161.4 | 2.7 | 333.5 | 26.9 | 17.4 |
| 2024-05-15 12:00 | 14.0 | 155.4 | 2.9 | 269.6 | 26.4 | 14.4 |
| 2024-05-15 11:00 | 16.7 | 137.9 | 2.9 | 289.7 | 21.5 | 11.9 |
| 2024-05-15 10:00 | 18.5 | 122.9 | 2.7 | 263.1 | 20.5 | 10.5 |
| 2024-05-15 09:00 | 23.0 | 99.5 | 2.5 | 309.5 | 24.3 | 11.6 |
| 2024-05-15 08:00 | 32.0 | 85.9 | 2.3 | 415.6 | 21.6 | 13.6 |
| 2024-05-15 07:00 | 40.2 | 77.8 | 2.0 | 358.5 | 20.3 | 13.1 |
| 2024-05-15 06:00 | 20.8 | 107.7 | 1.9 | 321.9 | 22.7 | 12.1 |
| 2024-05-15 05:00 | 13.9 | 127.8 | 1.7 | 299.6 | 21.6 | 11.4 |
| 2024-05-15 04:00 | 10.1 | 140.0 | 2.1 | 269.6 | 20.4 | 9.9 |
| 2024-05-15 03:00 | 9.3 | 137.7 | 1.9 | 258.9 | 21.1 | 9.3 |
| 2024-05-15 02:00 | 9.3 | 138.0 | 1.5 | 233.8 | 18.5 | 11.6 |
| 2024-05-15 01:00 | 9.9 | 135.5 | 1.4 | 244.9 | 18.2 | 13.0 |
| 2024-05-15 00:00 | 12.1 | 137.2 | 2.3 | 273.8 | 19.5 | 10.7 |
| 2024-05-14 23:00 | 16.2 | 139.9 | 2.5 | 300.2 | 14.9 | 9.5 |
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.
