Causeway Bay
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2024-04-24 01:00 | 50.4 | 34.9 | 3.9 | 644.5 | 23.8 | 19.1 |
| 2024-04-24 00:00 | 72.9 | 17.8 | 4.6 | 902.9 | 25.0 | 21.1 |
| 2024-04-23 23:00 | 73.0 | 22.3 | 4.4 | 978.6 | 28.8 | 23.1 |
| 2024-04-23 22:00 | 68.0 | 22.5 | 5.4 | 846.6 | 30.5 | 25.8 |
| 2024-04-23 21:00 | 79.0 | 21.6 | 5.1 | 882.2 | 28.5 | 22.3 |
| 2024-04-23 20:00 | 91.7 | 20.5 | 6.8 | 900.8 | 19.5 | 14.3 |
| 2024-04-23 19:00 | 109.6 | 12.7 | 7.0 | 845.9 | 23.1 | 18.0 |
| 2024-04-23 18:00 | 121.0 | 12.3 | 7.2 | 821.3 | 28.7 | 20.6 |
| 2024-04-23 17:00 | 98.5 | 19.4 | 5.4 | 823.5 | 38.5 | 24.0 |
| 2024-04-23 16:00 | 104.9 | 18.5 | 4.9 | 827.7 | 23.5 | 16.9 |
| 2024-04-23 15:00 | 77.0 | 29.7 | 4.8 | 670.4 | 23.1 | 18.7 |
| 2024-04-23 14:00 | 96.5 | 19.0 | 6.5 | 967.2 | 30.1 | 24.3 |
| 2024-04-23 13:00 | 71.8 | 23.2 | 4.1 | 647.1 | 24.7 | 20.7 |
| 2024-04-23 12:00 | 69.2 | 18.7 | 4.7 | 625.6 | 29.9 | 21.8 |
| 2024-04-23 11:00 | 79.0 | 10.9 | 7.2 | 980.1 | 24.0 | 17.8 |
| 2024-04-23 10:00 | 80.8 | 7.3 | 7.4 | 1,054.2 | 36.4 | 27.8 |
| 2024-04-23 09:00 | 78.5 | 10.2 | 6.6 | 835.6 | 42.2 | 35.0 |
| 2024-04-23 08:00 | 79.7 | 10.8 | 7.5 | 1,109.2 | 42.8 | 35.7 |
| 2024-04-23 07:00 | 61.4 | 6.7 | 5.9 | 842.4 | 25.4 | 18.8 |
| 2024-04-23 06:00 | 55.7 | 8.2 | 4.9 | 928.8 | 21.6 | 14.7 |
| 2024-04-23 05:00 | 46.2 | 13.0 | 3.8 | - | 21.3 | 13.3 |
| 2024-04-23 04:00 | 42.8 | 13.9 | 3.6 | 676.1 | 21.6 | 14.3 |
| 2024-04-23 03:00 | 46.6 | 17.8 | 3.5 | 621.9 | 24.8 | 18.7 |
| 2024-04-23 02:00 | 56.1 | 13.6 | 4.7 | 843.5 | 29.5 | 23.7 |
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.
