Causeway Bay
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2024-05-06 10:00 | 86.4 | 4.4 | 4.6 | 819.7 | 18.8 | 13.1 |
| 2024-05-06 09:00 | 79.5 | 3.8 | 5.1 | 695.2 | 29.3 | 21.4 |
| 2024-05-06 08:00 | 69.6 | 2.3 | 5.5 | 890.2 | 35.8 | 23.0 |
| 2024-05-06 07:00 | 49.9 | 1.4 | 3.9 | 709.5 | 25.2 | 12.0 |
| 2024-05-06 06:00 | 38.3 | 2.9 | 2.0 | 499.0 | 22.0 | 10.2 |
| 2024-05-06 05:00 | - | 5.4 | - | - | 25.2 | 14.4 |
| 2024-05-06 04:00 | 42.6 | 8.6 | 1.4 | 559.5 | 30.5 | 15.8 |
| 2024-05-06 03:00 | 44.1 | 8.9 | 1.6 | 540.2 | 26.1 | 15.9 |
| 2024-05-06 02:00 | 58.7 | 9.7 | 2.1 | 903.5 | 21.8 | 13.0 |
| 2024-05-06 01:00 | 74.0 | 7.4 | 3.0 | 1,271.4 | 17.8 | 9.9 |
| 2024-05-06 00:00 | 76.2 | 4.5 | 2.6 | 776.0 | 18.8 | 11.8 |
| 2024-05-05 23:00 | 70.0 | 12.6 | 2.2 | 744.5 | 23.6 | 15.3 |
| 2024-05-05 22:00 | 67.2 | 21.6 | 1.9 | 591.8 | 21.9 | 15.2 |
| 2024-05-05 21:00 | 47.8 | 49.7 | 1.3 | 523.6 | 26.8 | 20.8 |
| 2024-05-05 20:00 | 45.5 | 59.7 | 1.1 | 548.4 | 39.2 | 29.4 |
| 2024-05-05 19:00 | 48.5 | 54.9 | 1.1 | 531.2 | 30.1 | 21.9 |
| 2024-05-05 18:00 | 55.0 | 50.5 | 1.4 | 463.4 | 30.7 | 21.5 |
| 2024-05-05 17:00 | 49.6 | 52.2 | 1.5 | 452.3 | 29.4 | 20.3 |
| 2024-05-05 16:00 | 66.1 | 31.4 | 2.9 | 607.6 | 38.5 | 28.0 |
| 2024-05-05 15:00 | 77.1 | 25.9 | 2.7 | 681.8 | 36.4 | 26.5 |
| 2024-05-05 14:00 | 88.5 | 30.7 | 3.6 | 614.7 | 30.0 | 19.4 |
| 2024-05-05 13:00 | 80.2 | 39.2 | 2.0 | 582.0 | 32.8 | 23.0 |
| 2024-05-05 12:00 | 60.8 | 50.7 | 1.7 | 509.3 | 15.2 | 10.9 |
| 2024-05-05 11:00 | 81.0 | 25.6 | 2.9 | 594.5 | 22.6 | 16.3 |
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.