Causeway Bay
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2024-04-24 11:00 | 104.0 | 7.4 | 11.0 | 1,192.4 | 67.8 | 44.9 |
| 2024-04-24 10:00 | 104.0 | 6.8 | 10.4 | 1,115.3 | 42.0 | 29.8 |
| 2024-04-24 09:00 | 100.1 | 8.2 | 8.7 | 937.1 | 29.1 | 23.2 |
| 2024-04-24 08:00 | 101.4 | 13.4 | 6.2 | 789.4 | 26.6 | 18.8 |
| 2024-04-24 07:00 | 81.7 | 12.4 | 6.5 | 722.4 | 24.5 | 15.8 |
| 2024-04-24 06:00 | 58.0 | 9.8 | 4.3 | 582.8 | 21.4 | 13.6 |
| 2024-04-24 05:00 | - | 14.9 | - | - | 23.2 | 16.5 |
| 2024-04-24 04:00 | 47.0 | 22.3 | 3.8 | 714.8 | 17.7 | 12.3 |
| 2024-04-24 03:00 | 46.1 | 29.2 | 4.2 | 1,173.9 | 17.2 | 14.7 |
| 2024-04-24 02:00 | 53.4 | 24.4 | 3.9 | 764.8 | 19.8 | 16.9 |
| 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 |
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.
