Central/Western
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2024-04-28 02:00 | 19.7 | 23.4 | 1.5 | - | 15.5 | 4.2 |
| 2024-04-28 01:00 | - | 27.7 | - | - | 13.5 | 3.1 |
| 2024-04-28 00:00 | 11.8 | 28.2 | 1.1 | - | 16.6 | 5.5 |
| 2024-04-27 23:00 | 11.0 | 32.4 | 1.2 | - | 19.9 | 7.0 |
| 2024-04-27 22:00 | 14.4 | 28.5 | 1.1 | - | 18.4 | 5.4 |
| 2024-04-27 21:00 | 16.0 | 25.1 | 1.3 | - | 20.8 | 8.0 |
| 2024-04-27 20:00 | 21.7 | 20.8 | 1.5 | - | 23.4 | 9.9 |
| 2024-04-27 19:00 | 28.8 | 14.1 | 1.4 | - | 23.2 | 9.9 |
| 2024-04-27 18:00 | 24.6 | 22.0 | 1.4 | - | 21.6 | 8.8 |
| 2024-04-27 17:00 | 29.1 | 19.1 | 1.5 | - | 20.5 | 7.3 |
| 2024-04-27 16:00 | 25.6 | 21.8 | 1.4 | - | 18.9 | 6.9 |
| 2024-04-27 15:00 | 13.3 | 36.4 | 1.3 | - | 17.6 | 6.5 |
| 2024-04-27 14:00 | 11.5 | 38.9 | 1.3 | - | 18.7 | 7.7 |
| 2024-04-27 13:00 | 14.4 | 36.0 | 1.3 | - | 20.6 | 9.5 |
| 2024-04-27 12:00 | 15.6 | 34.0 | 1.4 | - | 19.7 | 8.4 |
| 2024-04-27 11:00 | 15.8 | 31.5 | 1.3 | - | 18.9 | 7.5 |
| 2024-04-27 10:00 | 15.9 | 28.0 | 1.2 | - | 20.4 | 8.8 |
| 2024-04-27 09:00 | 14.6 | 28.7 | 1.2 | - | 20.4 | 8.3 |
| 2024-04-27 08:00 | 10.6 | 37.0 | 1.2 | - | 19.1 | 7.1 |
| 2024-04-27 07:00 | 6.7 | 39.9 | 1.4 | - | 18.4 | 6.2 |
| 2024-04-27 06:00 | 11.4 | 32.6 | 1.3 | - | 19.1 | 7.4 |
| 2024-04-27 05:00 | 9.9 | 35.1 | 1.3 | - | 18.3 | 7.4 |
| 2024-04-27 04:00 | 10.1 | 35.1 | 1.4 | - | 18.3 | 7.0 |
| 2024-04-27 03:00 | 6.8 | 34.9 | 1.3 | - | 17.2 | 6.1 |
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.
