North
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2024-04-20 21:00 | 22.8 | 81.3 | 1.1 | 349.0 | 15.0 | 11.5 |
| 2024-04-20 20:00 | 24.1 | 78.5 | 1.0 | 320.3 | 17.0 | 13.7 |
| 2024-04-20 19:00 | 30.6 | 73.2 | 1.1 | 334.0 | 19.2 | 14.7 |
| 2024-04-20 18:00 | 29.9 | 53.3 | 1.2 | 296.3 | 21.2 | 16.6 |
| 2024-04-20 17:00 | 24.5 | 40.2 | 1.5 | 350.0 | 17.7 | 17.3 |
| 2024-04-20 16:00 | 23.7 | 40.7 | 1.4 | 302.6 | 15.6 | - |
| 2024-04-20 15:00 | 22.1 | 44.3 | 1.3 | 255.8 | 19.3 | 16.8 |
| 2024-04-20 14:00 | 13.8 | 55.9 | 1.4 | 219.4 | 21.7 | 17.6 |
| 2024-04-20 13:00 | 15.4 | 55.9 | 1.5 | 226.2 | 21.6 | 17.7 |
| 2024-04-20 12:00 | 17.7 | 51.3 | 1.3 | 249.1 | 21.0 | 16.4 |
| 2024-04-20 11:00 | 13.8 | 54.4 | 1.4 | 243.3 | 19.7 | 16.0 |
| 2024-04-20 10:00 | 16.6 | 48.4 | 1.3 | 266.1 | 18.1 | 15.2 |
| 2024-04-20 09:00 | 16.3 | 46.7 | 1.7 | 275.6 | 17.6 | 13.3 |
| 2024-04-20 08:00 | 14.3 | 46.7 | 1.6 | 256.0 | 16.1 | 13.4 |
| 2024-04-20 07:00 | 12.8 | 46.0 | 1.6 | 268.4 | 12.8 | - |
| 2024-04-20 06:00 | 11.4 | 46.9 | 1.8 | 264.6 | 13.4 | 12.2 |
| 2024-04-20 05:00 | 8.9 | 48.8 | 1.6 | 264.6 | 15.2 | 13.2 |
| 2024-04-20 04:00 | 7.9 | 50.4 | 2.2 | 228.5 | 14.2 | 13.5 |
| 2024-04-20 03:00 | 8.2 | 51.3 | 1.6 | 234.9 | 17.3 | 16.7 |
| 2024-04-20 02:00 | 7.1 | 52.8 | 1.2 | 248.1 | 19.6 | 16.6 |
| 2024-04-20 01:00 | 10.8 | 48.9 | 1.4 | 250.2 | 17.1 | 15.3 |
| 2024-04-20 00:00 | 15.8 | 44.1 | 2.4 | 287.5 | 15.3 | 12.6 |
| 2024-04-19 23:00 | 13.5 | 47.2 | 2.2 | 230.3 | 15.7 | 12.0 |
| 2024-04-19 22:00 | 17.8 | 42.6 | 2.4 | 320.1 | 15.7 | - |
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.
