Causeway Bay
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2024-05-03 10:00 | 71.0 | 48.8 | 1.1 | 428.9 | 48.8 | 27.1 |
| 2024-05-03 09:00 | 80.6 | 45.4 | 1.5 | 464.9 | 33.4 | 19.5 |
| 2024-05-03 08:00 | 58.6 | 63.1 | 0.9 | 358.0 | 24.1 | 13.5 |
| 2024-05-03 07:00 | 54.0 | 65.9 | 0.5 | 345.9 | 28.5 | 15.0 |
| 2024-05-03 06:00 | 27.2 | 93.9 | 0.7 | 888.6 | 28.7 | 16.7 |
| 2024-05-03 05:00 | 23.1 | 102.9 | 0.3 | 308.1 | 32.6 | 16.7 |
| 2024-05-03 04:00 | 21.3 | 106.9 | 0.5 | 308.4 | 27.7 | 11.7 |
| 2024-05-03 03:00 | 24.7 | 103.4 | 0.4 | 332.9 | 25.3 | 9.4 |
| 2024-05-03 02:00 | 65.7 | 65.6 | 1.2 | 337.5 | 36.3 | 18.4 |
| 2024-05-03 01:00 | 71.6 | 61.2 | 1.1 | 342.6 | 34.2 | 19.5 |
| 2024-05-03 00:00 | 57.6 | 81.0 | 0.7 | 370.0 | 23.1 | 17.6 |
| 2024-05-02 23:00 | 38.7 | 95.6 | 0.6 | 342.9 | 21.0 | 14.3 |
| 2024-05-02 22:00 | 48.6 | 85.0 | 0.7 | 390.5 | 27.6 | 17.1 |
| 2024-05-02 21:00 | 50.5 | 76.8 | 0.8 | 484.5 | 40.7 | 23.4 |
| 2024-05-02 20:00 | 65.3 | 62.0 | 1.3 | 483.8 | 50.4 | 29.1 |
| 2024-05-02 19:00 | 56.1 | 72.9 | 0.9 | 498.0 | 53.3 | 29.4 |
| 2024-05-02 18:00 | 45.9 | 82.2 | 0.7 | 447.6 | 51.5 | 26.2 |
| 2024-05-02 17:00 | 71.3 | 58.0 | 1.0 | 459.6 | 49.5 | 25.7 |
| 2024-05-02 16:00 | 76.5 | 51.2 | 1.1 | 501.2 | 49.5 | 27.2 |
| 2024-05-02 15:00 | 78.6 | 53.1 | 1.4 | 497.2 | 45.4 | 25.8 |
| 2024-05-02 14:00 | 81.2 | 51.6 | 1.1 | 493.0 | 46.0 | 26.9 |
| 2024-05-02 13:00 | 76.3 | 51.0 | 1.0 | 489.6 | 47.5 | 29.3 |
| 2024-05-02 12:00 | 84.5 | 43.7 | 1.5 | 498.7 | 41.8 | 23.4 |
| 2024-05-02 11:00 | 76.7 | 42.8 | 1.4 | 472.4 | 38.8 | 19.4 |
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.