Central/Western
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2024-05-02 21:00 | 31.9 | 93.5 | 1.6 | - | 26.4 | 11.4 |
| 2024-05-02 20:00 | 28.1 | 99.4 | 1.7 | - | 32.2 | 15.0 |
| 2024-05-02 19:00 | 33.5 | 95.4 | 1.7 | - | 31.8 | 12.2 |
| 2024-05-02 18:00 | 35.5 | 93.9 | 1.7 | - | 35.7 | 14.2 |
| 2024-05-02 17:00 | 41.4 | 85.9 | 1.6 | - | 35.0 | 15.3 |
| 2024-05-02 16:00 | 47.7 | 79.1 | 1.7 | - | 34.9 | 15.5 |
| 2024-05-02 15:00 | 46.5 | 80.4 | 1.8 | - | 30.5 | 15.2 |
| 2024-05-02 14:00 | 36.6 | 86.3 | 1.7 | - | 29.4 | 15.1 |
| 2024-05-02 13:00 | 44.1 | 79.8 | 1.7 | - | 28.6 | 14.0 |
| 2024-05-02 12:00 | 44.5 | 75.9 | 1.7 | - | 28.2 | 13.8 |
| 2024-05-02 11:00 | 38.6 | 79.3 | 1.8 | - | 26.0 | 12.3 |
| 2024-05-02 10:00 | 40.0 | 72.9 | 1.8 | - | 22.1 | 9.8 |
| 2024-05-02 09:00 | 40.8 | 68.7 | 1.9 | - | 22.2 | 12.2 |
| 2024-05-02 08:00 | 32.4 | 69.7 | 2.0 | - | 18.1 | 10.9 |
| 2024-05-02 07:00 | 16.1 | 79.8 | 1.9 | - | 16.7 | 11.9 |
| 2024-05-02 06:00 | 9.7 | 89.0 | 1.8 | - | 15.7 | 12.1 |
| 2024-05-02 05:00 | 8.3 | 90.7 | 1.9 | - | 14.5 | 10.8 |
| 2024-05-02 04:00 | - | 88.1 | 1.9 | - | 12.5 | 9.4 |
| 2024-05-02 03:00 | 10.4 | 97.8 | 2.0 | - | 13.0 | 9.9 |
| 2024-05-02 02:00 | 22.2 | 89.5 | 2.2 | - | 19.0 | 15.5 |
| 2024-05-02 01:00 | - | 30.1 | - | - | 18.9 | 15.2 |
| 2024-05-02 00:00 | 38.6 | - | 1.8 | - | 16.9 | 14.7 |
| 2024-05-01 23:00 | 42.9 | 78.1 | 1.8 | - | 18.4 | 15.7 |
| 2024-05-01 22:00 | 61.2 | 68.5 | 2.2 | - | 68.7 | 61.3 |
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.