Central/Western
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2024-05-11 20:00 | 54.4 | 50.9 | 3.6 | - | 33.3 | 18.2 |
| 2024-05-11 19:00 | 51.1 | 75.7 | 3.9 | - | 36.5 | 21.2 |
| 2024-05-11 18:00 | 49.5 | 84.8 | 3.9 | - | 28.6 | 13.4 |
| 2024-05-11 17:00 | 45.7 | 76.4 | 3.9 | - | 28.9 | 11.8 |
| 2024-05-11 16:00 | 44.4 | 75.1 | 3.5 | - | 30.7 | 12.4 |
| 2024-05-11 15:00 | 45.3 | 67.4 | 3.5 | - | 30.6 | 13.6 |
| 2024-05-11 14:00 | 36.2 | 75.6 | 3.5 | - | 26.6 | 11.3 |
| 2024-05-11 13:00 | 36.5 | 81.6 | 3.5 | - | 26.4 | 12.0 |
| 2024-05-11 12:00 | 38.5 | 83.8 | 3.5 | - | 25.4 | 9.6 |
| 2024-05-11 11:00 | 42.0 | 78.0 | 3.6 | - | 24.5 | 9.3 |
| 2024-05-11 10:00 | 49.4 | 67.1 | 3.7 | - | 28.9 | 12.2 |
| 2024-05-11 09:00 | 33.2 | 69.9 | 3.2 | - | 28.5 | 10.3 |
| 2024-05-11 08:00 | 26.4 | 74.9 | 3.2 | - | 28.7 | 7.7 |
| 2024-05-11 07:00 | 17.6 | 84.1 | 3.3 | - | 30.7 | 9.9 |
| 2024-05-11 06:00 | 8.5 | 94.1 | 3.0 | - | 27.6 | 7.8 |
| 2024-05-11 05:00 | 8.6 | 97.9 | 3.0 | - | 26.9 | 7.9 |
| 2024-05-11 04:00 | 8.9 | 99.1 | 3.0 | - | 28.4 | 8.9 |
| 2024-05-11 03:00 | 10.9 | 98.8 | 3.0 | - | 27.8 | 8.9 |
| 2024-05-11 02:00 | 14.3 | 95.5 | 2.9 | - | 25.7 | 7.1 |
| 2024-05-11 01:00 | 20.8 | 90.7 | 2.9 | - | 26.7 | 8.2 |
| 2024-05-11 00:00 | 17.8 | 96.0 | 2.8 | - | 25.8 | 8.9 |
| 2024-05-10 23:00 | 25.3 | 90.0 | 2.9 | - | 24.5 | 9.6 |
| 2024-05-10 22:00 | 25.1 | 90.9 | 3.0 | - | 21.3 | 9.3 |
| 2024-05-10 21:00 | 20.5 | 101.5 | 3.0 | - | 21.9 | 10.1 |
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.