Central
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2024-05-04 01:00 | 31.3 | 108.5 | 1.5 | 332.8 | 36.7 | 17.0 |
| 2024-05-04 00:00 | 49.4 | 83.7 | 1.5 | 375.6 | 43.6 | 22.0 |
| 2024-05-03 23:00 | 63.9 | 75.7 | 1.8 | 427.4 | 49.3 | 26.3 |
| 2024-05-03 22:00 | 66.5 | 74.4 | 1.9 | 502.4 | 47.1 | 23.1 |
| 2024-05-03 21:00 | 62.3 | 73.5 | 1.9 | 513.9 | 48.8 | 25.5 |
| 2024-05-03 20:00 | 90.3 | 47.2 | 2.3 | 547.1 | 50.7 | 25.7 |
| 2024-05-03 19:00 | 104.5 | 39.4 | 2.5 | 518.0 | 43.1 | 18.5 |
| 2024-05-03 18:00 | 99.8 | 46.1 | 2.7 | 520.2 | 40.2 | 20.0 |
| 2024-05-03 17:00 | 95.6 | 49.7 | 2.4 | 451.3 | 33.8 | 18.0 |
| 2024-05-03 16:00 | 87.3 | 63.5 | 2.6 | 431.5 | 31.9 | 17.6 |
| 2024-05-03 15:00 | 95.4 | 55.8 | 2.4 | 522.4 | 40.5 | 24.3 |
| 2024-05-03 14:00 | 83.2 | 67.5 | 2.1 | 642.7 | 44.8 | 25.3 |
| 2024-05-03 13:00 | 75.6 | 64.1 | 2.1 | 493.1 | 38.6 | 17.9 |
| 2024-05-03 12:00 | 81.1 | 53.6 | 2.3 | 590.6 | 37.5 | 16.3 |
| 2024-05-03 11:00 | 76.6 | 53.0 | 1.9 | 472.4 | 37.7 | 15.8 |
| 2024-05-03 10:00 | 69.7 | 57.2 | 1.9 | 426.5 | 31.4 | 12.6 |
| 2024-05-03 09:00 | 74.6 | 50.3 | 1.9 | 364.8 | 25.0 | 13.8 |
| 2024-05-03 08:00 | 63.1 | 64.7 | 1.4 | 334.7 | 24.3 | 14.7 |
| 2024-05-03 07:00 | 34.0 | 88.7 | 1.4 | 290.0 | 24.5 | 11.5 |
| 2024-05-03 06:00 | 25.9 | 102.1 | 1.2 | 270.6 | 23.6 | 11.5 |
| 2024-05-03 05:00 | 15.1 | 113.6 | 1.6 | 264.9 | 27.6 | 13.2 |
| 2024-05-03 04:00 | 19.0 | 111.9 | 1.1 | 274.0 | 29.2 | 15.1 |
| 2024-05-03 03:00 | 16.9 | 115.5 | 1.5 | 284.4 | 27.9 | 13.0 |
| 2024-05-03 02:00 | 21.3 | 110.3 | 1.3 | 343.2 | 28.3 | 11.4 |
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.