Central/Western
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 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 |
| 2024-05-01 21:00 | 88.6 | 45.0 | 3.4 | - | 37.4 | 31.4 |
| 2024-05-01 20:00 | 119.9 | 17.0 | 5.2 | - | 19.4 | 14.7 |
| 2024-05-01 19:00 | 107.6 | 30.0 | 3.2 | - | 14.3 | 10.0 |
| 2024-05-01 18:00 | 98.2 | 41.9 | 2.6 | - | 17.1 | 14.3 |
| 2024-05-01 17:00 | 70.3 | 64.3 | 2.3 | - | 16.1 | 13.3 |
| 2024-05-01 16:00 | 75.7 | 57.0 | 1.9 | - | 14.3 | 12.6 |
| 2024-05-01 15:00 | 60.2 | 71.1 | 1.8 | - | 12.5 | 10.8 |
| 2024-05-01 14:00 | 71.2 | 57.3 | 1.7 | - | 14.5 | 12.5 |
| 2024-05-01 13:00 | 56.3 | 64.0 | 1.7 | - | 6.8 | 5.4 |
| 2024-05-01 12:00 | 56.8 | 45.8 | 1.9 | - | 4.0 | 1.6 |
| 2024-05-01 11:00 | 70.9 | 35.5 | 2.0 | - | 3.2 | 1.1 |
| 2024-05-01 10:00 | 39.6 | 63.3 | 1.8 | - | 3.4 | 2.1 |
| 2024-05-01 09:00 | 39.6 | 60.3 | 2.0 | - | 3.0 | 1.2 |
| 2024-05-01 08:00 | 22.8 | 77.0 | 1.5 | - | 3.0 | 1.2 |
| 2024-05-01 07:00 | 18.2 | 77.6 | 1.6 | - | 3.5 | 1.0 |
| 2024-05-01 06:00 | 17.9 | 75.4 | 1.7 | - | 12.0 | 8.5 |
| 2024-05-01 05:00 | 7.3 | 95.4 | 1.6 | - | 11.9 | 8.5 |
| 2024-05-01 04:00 | 11.8 | 88.2 | 1.7 | - | 18.1 | 11.9 |
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.