Causeway Bay
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2024-04-18 17:00 | 128.2 | 11.7 | 8.0 | 1,066.9 | 35.3 | 21.6 |
| 2024-04-18 16:00 | 114.6 | 15.0 | 5.9 | 933.1 | 27.2 | 15.5 |
| 2024-04-18 15:00 | 115.1 | 21.1 | 5.9 | 753.5 | 30.1 | 17.8 |
| 2024-04-18 14:00 | 81.9 | 27.5 | 5.0 | 623.8 | 37.8 | 26.7 |
| 2024-04-18 13:00 | 86.5 | 9.4 | 7.5 | 715.9 | 45.5 | 34.0 |
| 2024-04-18 12:00 | 59.7 | 23.0 | 4.4 | 641.2 | 31.1 | 20.4 |
| 2024-04-18 11:00 | 50.1 | 30.5 | 4.6 | 441.2 | 32.7 | 21.8 |
| 2024-04-18 10:00 | 64.1 | 17.2 | 5.5 | 508.4 | 31.7 | 20.8 |
| 2024-04-18 09:00 | 55.7 | 24.1 | 4.0 | 450.0 | 17.8 | 12.8 |
| 2024-04-18 08:00 | 48.8 | 24.2 | 4.1 | 449.4 | 23.8 | 16.5 |
| 2024-04-18 07:00 | 52.7 | 17.4 | 4.6 | 579.0 | 26.5 | 17.9 |
| 2024-04-18 06:00 | 34.4 | 30.9 | 3.4 | 632.9 | 23.7 | 14.9 |
| 2024-04-18 05:00 | - | 34.4 | - | - | 34.4 | 16.3 |
| 2024-04-18 04:00 | 28.9 | 32.2 | 3.5 | 1,073.2 | 26.7 | 19.5 |
| 2024-04-18 03:00 | 38.1 | 23.8 | 3.8 | 1,025.4 | 30.2 | 16.6 |
| 2024-04-18 02:00 | 34.1 | 25.9 | 3.6 | 651.4 | 18.8 | 13.9 |
| 2024-04-18 01:00 | 42.9 | 19.7 | 4.2 | 974.5 | 29.6 | 20.5 |
| 2024-04-18 00:00 | 50.5 | 17.2 | 4.5 | 1,007.9 | 30.4 | 22.2 |
| 2024-04-17 23:00 | 47.2 | 18.2 | 5.0 | 560.7 | 17.5 | 14.7 |
| 2024-04-17 22:00 | 36.8 | 27.0 | 3.9 | 439.5 | 33.2 | 24.0 |
| 2024-04-17 21:00 | 50.8 | 19.7 | 4.6 | 642.6 | 28.2 | 21.7 |
| 2024-04-17 20:00 | 54.8 | 21.9 | 5.4 | 563.4 | 36.3 | 28.5 |
| 2024-04-17 19:00 | 94.6 | 8.9 | 7.1 | 706.5 | 30.6 | 22.8 |
| 2024-04-17 18:00 | 77.0 | 15.4 | 7.6 | 634.5 | 29.5 | 22.4 |
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.
