Southern
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2024-04-19 21:00 | 8.6 | 52.5 | 0.5 | 469.5 | 20.3 | 12.4 |
| 2024-04-19 20:00 | 9.0 | 53.5 | 0.6 | 470.8 | 21.7 | 7.3 |
| 2024-04-19 19:00 | 11.4 | 51.3 | 0.7 | 475.5 | 22.0 | 3.1 |
| 2024-04-19 18:00 | 19.7 | 54.3 | 1.1 | 479.2 | 21.1 | 5.7 |
| 2024-04-19 17:00 | 15.4 | 54.0 | 1.1 | 455.6 | 19.3 | 10.0 |
| 2024-04-19 16:00 | 33.8 | 36.8 | 2.3 | 468.6 | 20.9 | 11.5 |
| 2024-04-19 15:00 | 18.4 | 51.0 | 1.1 | 469.6 | 21.9 | 11.9 |
| 2024-04-19 14:00 | 17.4 | 50.3 | 1.4 | 468.9 | 19.4 | 11.2 |
| 2024-04-19 13:00 | 14.4 | 55.0 | 1.7 | 462.6 | 19.2 | 10.8 |
| 2024-04-19 12:00 | 11.8 | 55.2 | 1.9 | 453.0 | 20.1 | 10.0 |
| 2024-04-19 11:00 | 13.7 | 51.3 | 2.1 | 464.2 | 19.5 | 11.6 |
| 2024-04-19 10:00 | 11.4 | 54.6 | 1.7 | 464.3 | 17.0 | 11.4 |
| 2024-04-19 09:00 | 14.5 | 49.5 | 2.2 | 457.9 | 15.4 | 7.8 |
| 2024-04-19 08:00 | 14.6 | 42.9 | 2.0 | 453.6 | 14.2 | 5.8 |
| 2024-04-19 07:00 | 17.4 | 39.3 | 1.8 | 445.4 | 16.5 | 9.6 |
| 2024-04-19 06:00 | 18.8 | 37.1 | 1.5 | 441.9 | 22.1 | 15.1 |
| 2024-04-19 05:00 | 6.5 | 49.3 | 1.3 | 442.2 | 20.9 | 10.7 |
| 2024-04-19 04:00 | 10.5 | 45.6 | 1.3 | 451.2 | 20.4 | 7.3 |
| 2024-04-19 03:00 | 12.9 | 42.1 | 1.5 | 432.6 | 20.4 | 10.7 |
| 2024-04-19 02:00 | 14.6 | 39.9 | 1.8 | 439.7 | 14.8 | 9.7 |
| 2024-04-19 01:00 | 20.1 | 37.6 | 2.2 | 459.0 | 12.7 | 5.6 |
| 2024-04-19 00:00 | 24.9 | 42.3 | 1.8 | 511.3 | 11.2 | - |
| 2024-04-18 23:00 | 27.4 | 47.3 | 1.8 | 540.8 | 8.8 | - |
| 2024-04-18 22:00 | 19.6 | 48.8 | 1.7 | 518.9 | 9.2 | 3.5 |
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.
