Central/Western
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2024-04-29 22:00 | 16.2 | 32.6 | 1.2 | - | 14.1 | 8.1 |
| 2024-04-29 21:00 | 17.8 | 29.3 | 1.4 | - | 16.7 | 10.0 |
| 2024-04-29 20:00 | 21.5 | 29.2 | 1.3 | - | 15.8 | 9.8 |
| 2024-04-29 19:00 | 14.0 | 38.1 | 1.2 | - | 14.5 | 8.7 |
| 2024-04-29 18:00 | 14.8 | 40.3 | 1.3 | - | 16.4 | 10.0 |
| 2024-04-29 17:00 | 19.8 | 39.2 | 1.4 | - | 16.3 | 9.4 |
| 2024-04-29 16:00 | 17.9 | 41.8 | 1.4 | - | 16.4 | 9.0 |
| 2024-04-29 15:00 | 15.2 | 45.9 | 1.4 | - | 15.7 | 9.0 |
| 2024-04-29 14:00 | 16.2 | 42.8 | 1.3 | - | 16.5 | 10.0 |
| 2024-04-29 13:00 | 12.8 | 44.4 | 1.2 | - | 15.6 | 8.6 |
| 2024-04-29 12:00 | 15.8 | 41.6 | 1.2 | - | 15.5 | 8.3 |
| 2024-04-29 11:00 | 18.3 | 39.3 | 1.3 | - | 14.7 | 7.6 |
| 2024-04-29 10:00 | 22.4 | 34.1 | 1.3 | - | 17.5 | 9.2 |
| 2024-04-29 09:00 | 41.2 | 19.1 | 1.5 | - | 22.2 | 10.3 |
| 2024-04-29 08:00 | 42.9 | 21.9 | 1.4 | - | 18.3 | 7.9 |
| 2024-04-29 07:00 | 31.0 | 35.0 | 1.3 | - | 16.4 | 5.9 |
| 2024-04-29 06:00 | 23.7 | 44.3 | 1.3 | - | 16.3 | 4.7 |
| 2024-04-29 05:00 | 17.9 | 49.6 | 1.2 | - | 15.5 | 4.7 |
| 2024-04-29 04:00 | 12.5 | 56.1 | 1.1 | - | 16.8 | 5.4 |
| 2024-04-29 03:00 | 12.4 | 62.1 | 1.2 | - | 13.3 | 2.5 |
| 2024-04-29 02:00 | 16.9 | 61.3 | 1.3 | - | 14.6 | 4.1 |
| 2024-04-29 01:00 | 20.4 | 64.4 | 1.3 | - | 15.0 | 4.7 |
| 2024-04-29 00:00 | 19.7 | 69.8 | 1.3 | - | 12.1 | 4.1 |
| 2024-04-28 23:00 | 19.4 | 69.8 | 1.2 | - | 16.9 | 7.0 |
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.