Central
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2024-04-23 22:00 | 91.0 | 4.8 | 4.6 | 763.9 | 26.0 | 19.3 |
| 2024-04-23 21:00 | 99.0 | 3.2 | 6.0 | 967.9 | 35.4 | 25.9 |
| 2024-04-23 20:00 | 112.8 | 2.2 | 7.2 | 935.0 | 37.0 | 24.6 |
| 2024-04-23 19:00 | 117.6 | 2.7 | 8.4 | 933.7 | 33.8 | 22.6 |
| 2024-04-23 18:00 | 113.1 | 2.9 | 6.4 | 814.7 | 30.5 | 21.4 |
| 2024-04-23 17:00 | 103.4 | 7.2 | 4.7 | 713.6 | 27.7 | 19.0 |
| 2024-04-23 16:00 | 107.3 | 7.5 | 4.9 | 659.7 | 18.9 | 13.9 |
| 2024-04-23 15:00 | 87.7 | 16.7 | 3.2 | 631.6 | 17.1 | 13.7 |
| 2024-04-23 14:00 | 83.9 | 22.6 | 3.5 | 892.1 | 23.8 | 20.2 |
| 2024-04-23 13:00 | 67.8 | 25.1 | 3.0 | 564.2 | 19.9 | 16.0 |
| 2024-04-23 12:00 | 63.6 | 13.1 | 4.4 | 766.4 | 22.1 | 15.3 |
| 2024-04-23 11:00 | 79.0 | 3.9 | 4.9 | 612.6 | 23.2 | 16.6 |
| 2024-04-23 10:00 | 90.9 | 1.7 | 6.1 | 793.6 | 38.4 | 30.1 |
| 2024-04-23 09:00 | 85.9 | 2.5 | 5.2 | 625.1 | 29.9 | 22.7 |
| 2024-04-23 08:00 | 69.2 | 3.7 | 3.6 | 488.8 | 25.2 | 19.5 |
| 2024-04-23 07:00 | 64.6 | 2.8 | 3.1 | 487.8 | 28.6 | 19.3 |
| 2024-04-23 06:00 | 63.1 | 1.6 | 2.9 | 453.5 | 38.6 | 21.6 |
| 2024-04-23 05:00 | 58.4 | 1.4 | 3.1 | 469.8 | 31.8 | 21.7 |
| 2024-04-23 04:00 | 56.3 | 5.2 | 2.7 | 536.8 | 31.9 | 21.3 |
| 2024-04-23 03:00 | 58.4 | 3.5 | 3.3 | 671.7 | 40.4 | 21.2 |
| 2024-04-23 02:00 | 69.5 | 2.7 | 3.0 | 603.4 | 77.5 | 25.2 |
| 2024-04-23 01:00 | 65.0 | 4.3 | 2.8 | 552.8 | 84.6 | 28.9 |
| 2024-04-23 00:00 | 74.3 | 1.6 | 3.7 | 560.9 | 38.8 | 22.9 |
| 2024-04-22 23:00 | 87.6 | 1.0 | 5.4 | 625.1 | 31.6 | 21.4 |
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.