Central/Western
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2024-04-23 19:00 | 96.4 | 11.5 | - | - | 19.8 | 9.9 |
| 2024-04-23 18:00 | 84.9 | 20.3 | - | - | 22.1 | 12.1 |
| 2024-04-23 17:00 | 73.2 | 31.8 | - | - | 22.1 | 12.8 |
| 2024-04-23 16:00 | 62.9 | 42.5 | - | - | 10.1 | 6.2 |
| 2024-04-23 15:00 | 22.5 | 77.9 | 2.3 | - | 4.5 | 3.0 |
| 2024-04-23 14:00 | 22.9 | 78.3 | 2.7 | - | 6.6 | 3.7 |
| 2024-04-23 13:00 | 20.4 | 65.6 | 2.8 | - | 10.9 | 7.8 |
| 2024-04-23 12:00 | 29.2 | 39.1 | 2.9 | - | 17.0 | 11.1 |
| 2024-04-23 11:00 | 66.4 | 9.0 | 4.0 | - | 10.4 | 7.4 |
| 2024-04-23 10:00 | 73.5 | 3.2 | 3.7 | - | 15.5 | 9.6 |
| 2024-04-23 09:00 | 58.0 | 18.1 | 3.3 | - | 23.4 | 17.1 |
| 2024-04-23 08:00 | 63.5 | 10.0 | 3.8 | - | 16.9 | 12.9 |
| 2024-04-23 07:00 | 57.3 | 9.1 | 3.0 | - | 18.4 | 13.9 |
| 2024-04-23 06:00 | 56.2 | 9.5 | 3.3 | - | 18.4 | 14.1 |
| 2024-04-23 05:00 | 41.8 | 21.9 | 3.1 | - | 17.2 | 12.8 |
| 2024-04-23 04:00 | 47.1 | 22.6 | 3.1 | - | 17.8 | 13.0 |
| 2024-04-23 03:00 | 30.8 | 47.2 | 2.9 | - | 14.4 | 11.2 |
| 2024-04-23 02:00 | 20.1 | 58.6 | 2.8 | - | 17.6 | 12.5 |
| 2024-04-23 01:00 | 66.3 | 15.1 | 3.6 | - | 22.3 | 14.8 |
| 2024-04-23 00:00 | 77.5 | 1.1 | 4.1 | - | 20.9 | 13.0 |
| 2024-04-22 23:00 | 62.0 | 14.4 | 3.7 | - | 22.7 | 14.4 |
| 2024-04-22 22:00 | 43.2 | 27.0 | 2.8 | - | 16.7 | 11.8 |
| 2024-04-22 21:00 | 29.3 | 40.8 | 2.8 | - | 17.2 | 12.8 |
| 2024-04-22 20:00 | 37.5 | 37.3 | 2.4 | - | 16.1 | 11.7 |
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.
