North
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2024-05-10 03:00 | 8.9 | 154.7 | 1.6 | 301.5 | 24.2 | 19.6 |
| 2024-05-10 02:00 | 10.3 | 158.7 | 1.7 | 297.6 | 26.5 | 19.5 |
| 2024-05-10 01:00 | 9.7 | 162.9 | 1.6 | 284.4 | 25.2 | 22.4 |
| 2024-05-10 00:00 | 10.1 | 169.3 | 1.5 | 286.4 | 22.4 | 20.9 |
| 2024-05-09 23:00 | 11.8 | 165.5 | 1.2 | 320.1 | 26.1 | 17.5 |
| 2024-05-09 22:00 | 14.2 | 158.3 | 1.2 | 348.4 | 22.4 | 20.0 |
| 2024-05-09 21:00 | 15.0 | 162.5 | 1.3 | 467.6 | 23.0 | 21.6 |
| 2024-05-09 20:00 | 22.0 | 161.1 | 1.3 | 679.5 | 33.6 | 23.3 |
| 2024-05-09 19:00 | 27.4 | 163.7 | 1.3 | 600.4 | 33.6 | 27.0 |
| 2024-05-09 18:00 | 26.9 | 167.8 | 1.5 | 372.4 | 32.6 | 27.6 |
| 2024-05-09 17:00 | 26.8 | 177.7 | 1.7 | 410.3 | 37.9 | 26.9 |
| 2024-05-09 16:00 | 23.8 | 173.5 | 1.9 | 377.0 | 28.0 | 23.5 |
| 2024-05-09 15:00 | 22.3 | 164.5 | 2.1 | 391.1 | 21.3 | - |
| 2024-05-09 14:00 | 18.5 | 167.2 | 2.0 | 389.3 | 29.3 | 22.1 |
| 2024-05-09 13:00 | 16.0 | 166.8 | 2.2 | 406.6 | 28.9 | 20.7 |
| 2024-05-09 12:00 | 17.3 | 163.2 | 2.2 | 395.6 | 20.7 | - |
| 2024-05-09 11:00 | 15.4 | 157.7 | 2.5 | 427.5 | 24.2 | 20.9 |
| 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 |
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.