Causeway Bay
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 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 |
| 2024-05-05 10:00 | 48.3 | 47.5 | 1.7 | 524.2 | 19.2 | 13.9 |
| 2024-05-05 09:00 | 68.4 | 18.7 | 2.8 | 664.1 | 18.6 | 15.8 |
| 2024-05-05 08:00 | 68.7 | 35.1 | 1.4 | 450.6 | 14.7 | 11.3 |
| 2024-05-05 07:00 | 75.9 | 25.7 | 1.4 | 515.0 | 11.8 | 4.9 |
| 2024-05-05 06:00 | 50.2 | 32.4 | 0.9 | 556.9 | 9.1 | 3.1 |
| 2024-05-05 05:00 | 34.0 | 50.2 | 0.8 | 361.1 | 11.2 | 7.1 |
| 2024-05-05 04:00 | 32.5 | 45.7 | 1.0 | 383.2 | 19.4 | 11.5 |
| 2024-05-05 03:00 | 56.4 | 3.8 | 2.0 | 1,007.1 | 18.4 | 9.0 |
| 2024-05-05 02:00 | 62.4 | 4.7 | 2.1 | 821.0 | 17.3 | 9.8 |
| 2024-05-05 01:00 | 69.8 | 5.2 | 1.8 | 856.0 | 23.6 | 16.5 |
| 2024-05-05 00:00 | 80.8 | 9.9 | 2.3 | 735.9 | 29.1 | 23.4 |
| 2024-05-04 23:00 | 91.3 | 7.6 | 2.7 | 720.4 | 31.0 | 24.7 |
| 2024-05-04 22:00 | 105.4 | 10.1 | 3.4 | 797.7 | 24.8 | 20.9 |
| 2024-05-04 21:00 | 108.5 | 12.5 | 3.1 | 1,027.2 | 25.1 | 20.9 |
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.