North
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2024-05-02 06:00 | 17.2 | 37.0 | 1.8 | 414.3 | 13.0 | 11.9 |
| 2024-05-02 05:00 | 18.3 | 39.7 | 1.7 | 456.2 | 14.3 | 11.5 |
| 2024-05-02 04:00 | 18.7 | 38.8 | 1.9 | 430.7 | 11.4 | - |
| 2024-05-02 03:00 | 17.0 | 40.6 | 1.5 | 493.7 | 17.3 | 10.7 |
| 2024-05-02 02:00 | 17.6 | 43.3 | 1.6 | 478.4 | 17.5 | 11.6 |
| 2024-05-02 01:00 | 23.4 | 48.1 | 1.5 | 452.3 | 13.0 | - |
| 2024-05-02 00:00 | 33.4 | 62.1 | 1.3 | 555.6 | 18.3 | 17.8 |
| 2024-05-01 23:00 | 41.1 | 60.6 | 1.4 | 839.0 | 11.6 | - |
| 2024-05-01 22:00 | 32.1 | 64.4 | 1.4 | 578.2 | 1.8 | - |
| 2024-05-01 21:00 | 23.4 | 73.2 | 1.3 | 590.6 | 5.5 | - |
| 2024-05-01 20:00 | 28.6 | 60.7 | 1.2 | 465.4 | 8.2 | - |
| 2024-05-01 19:00 | 40.1 | 63.0 | 1.4 | 764.2 | 5.9 | - |
| 2024-05-01 18:00 | 36.5 | 73.4 | 1.5 | 587.0 | 9.4 | 4.9 |
| 2024-05-01 17:00 | 37.1 | 66.3 | 1.4 | 585.4 | 12.8 | 8.5 |
| 2024-05-01 16:00 | 46.5 | 51.3 | 1.6 | 525.2 | 8.4 | 8.3 |
| 2024-05-01 15:00 | 38.2 | 58.8 | 1.8 | 609.5 | 6.2 | - |
| 2024-05-01 14:00 | 33.4 | 61.7 | 1.4 | 472.9 | 7.2 | 5.6 |
| 2024-05-01 13:00 | 43.2 | 53.1 | 1.5 | 550.6 | 7.9 | 5.8 |
| 2024-05-01 12:00 | 37.1 | 59.5 | 1.5 | 406.1 | 7.3 | - |
| 2024-05-01 11:00 | 31.4 | 55.2 | 1.3 | 449.7 | 5.2 | - |
| 2024-05-01 10:00 | 35.6 | 56.8 | 1.3 | 472.0 | 4.8 | - |
| 2024-05-01 09:00 | 15.1 | 78.7 | 1.5 | 372.0 | 6.8 | 6.7 |
| 2024-05-01 08:00 | 20.9 | 80.6 | 1.4 | 412.6 | 7.0 | - |
| 2024-05-01 07:00 | 23.1 | 84.1 | 1.2 | 414.0 | 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.