Causeway Bay
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2024-04-28 17:00 | 48.7 | 68.4 | 3.3 | 518.1 | 25.3 | 19.1 |
| 2024-04-28 16:00 | 56.6 | 62.1 | 3.3 | 547.7 | 20.9 | 16.2 |
| 2024-04-28 15:00 | 66.8 | 49.3 | 4.7 | 623.4 | 29.1 | 23.9 |
| 2024-04-28 14:00 | 85.0 | 45.4 | 4.3 | 700.1 | 33.0 | 25.4 |
| 2024-04-28 13:00 | 70.0 | 53.0 | 3.6 | 637.9 | 35.5 | 24.6 |
| 2024-04-28 12:00 | 68.6 | 55.3 | 2.9 | 587.6 | 25.6 | 14.0 |
| 2024-04-28 11:00 | 48.0 | 70.8 | 2.6 | 502.4 | 20.5 | 7.2 |
| 2024-04-28 10:00 | 36.5 | 79.6 | 2.4 | 436.0 | 12.4 | 3.1 |
| 2024-04-28 09:00 | 35.5 | 83.4 | 2.4 | 398.0 | 8.9 | 5.2 |
| 2024-04-28 08:00 | 22.4 | 94.6 | 2.6 | 393.8 | 15.1 | 11.1 |
| 2024-04-28 07:00 | 43.0 | 68.5 | 3.5 | 444.1 | 15.7 | 7.6 |
| 2024-04-28 06:00 | 16.2 | 83.1 | 7.7 | 365.0 | 16.1 | 5.8 |
| 2024-04-28 05:00 | - | 24.1 | - | - | 14.3 | 4.7 |
| 2024-04-28 04:00 | 16.2 | 28.5 | 2.8 | 350.8 | 12.7 | 5.2 |
| 2024-04-28 03:00 | 15.9 | 31.2 | 2.7 | 302.2 | 21.2 | 9.4 |
| 2024-04-28 02:00 | 28.5 | 21.6 | 3.5 | 1,213.1 | 28.8 | 14.8 |
| 2024-04-28 01:00 | 28.3 | 20.7 | 3.2 | 556.1 | 23.5 | 11.9 |
| 2024-04-28 00:00 | 30.6 | 16.9 | 3.5 | 605.6 | 35.3 | 21.8 |
| 2024-04-27 23:00 | 47.9 | 9.3 | 4.9 | 613.3 | 32.6 | 16.2 |
| 2024-04-27 22:00 | 51.5 | 8.5 | 5.3 | 635.3 | 35.9 | 19.8 |
| 2024-04-27 21:00 | 42.4 | 13.0 | 4.3 | 798.7 | 43.9 | 26.5 |
| 2024-04-27 20:00 | 41.6 | 13.9 | 5.6 | 600.4 | 43.6 | 26.1 |
| 2024-04-27 19:00 | 55.0 | 9.3 | 6.1 | 646.0 | 38.0 | 22.1 |
| 2024-04-27 18:00 | 54.3 | 10.3 | 5.5 | 630.3 | 36.6 | 20.1 |
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.
