Southern
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 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 |
| 2024-04-18 21:00 | 18.6 | 50.2 | 1.5 | 525.7 | 8.2 | - |
| 2024-04-18 20:00 | 18.3 | 61.7 | 1.3 | 523.6 | 9.4 | - |
| 2024-04-18 19:00 | 22.6 | 69.3 | 1.6 | 537.4 | 12.3 | 2.1 |
| 2024-04-18 18:00 | 76.1 | 61.7 | 3.3 | 603.9 | 13.0 | 7.9 |
| 2024-04-18 17:00 | 60.3 | 43.6 | 2.2 | 614.0 | 16.0 | 4.8 |
| 2024-04-18 16:00 | 29.6 | 77.6 | 1.4 | 541.0 | 21.1 | 3.3 |
| 2024-04-18 15:00 | 44.6 | 63.9 | 1.8 | 606.9 | 23.9 | 8.7 |
| 2024-04-18 14:00 | 29.3 | 68.2 | 2.6 | 536.9 | 26.5 | 12.0 |
| 2024-04-18 13:00 | 29.1 | 48.2 | 1.6 | 525.7 | 25.6 | 13.0 |
| 2024-04-18 12:00 | 30.2 | 42.0 | 1.7 | 536.7 | 20.8 | 14.4 |
| 2024-04-18 11:00 | 24.5 | 46.2 | 2.5 | 509.6 | 18.9 | 13.5 |
| 2024-04-18 10:00 | 29.9 | 38.6 | 2.7 | 521.9 | 19.4 | 10.9 |
| 2024-04-18 09:00 | 31.1 | 33.8 | 2.8 | 500.9 | 21.5 | 9.6 |
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.