Central/Western
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2024-05-09 19:00 | 31.5 | 153.0 | 3.0 | - | 44.5 | 21.6 |
| 2024-05-09 18:00 | 35.2 | 157.5 | 3.0 | - | 47.4 | 23.3 |
| 2024-05-09 17:00 | 41.7 | 156.3 | 3.1 | - | 45.5 | 22.0 |
| 2024-05-09 16:00 | 34.7 | 170.9 | 3.5 | - | 52.3 | 27.3 |
| 2024-05-09 15:00 | 28.2 | 172.6 | 3.4 | - | 54.9 | 28.6 |
| 2024-05-09 14:00 | 25.4 | 176.1 | 3.7 | - | 53.6 | 28.0 |
| 2024-05-09 13:00 | 29.3 | 169.6 | 4.0 | - | 51.1 | 26.5 |
| 2024-05-09 12:00 | 26.7 | 163.9 | 3.8 | - | 47.8 | 23.4 |
| 2024-05-09 11:00 | 30.0 | 150.3 | 3.4 | - | 47.7 | 23.8 |
| 2024-05-09 10:00 | 34.4 | 133.9 | 3.3 | - | 41.2 | 20.6 |
| 2024-05-09 09:00 | 32.1 | 125.0 | 3.4 | - | 35.4 | 18.8 |
| 2024-05-09 08:00 | 25.5 | 122.7 | 3.5 | - | 29.4 | 14.9 |
| 2024-05-09 07:00 | 15.2 | 129.3 | 3.2 | - | 25.4 | 11.5 |
| 2024-05-09 06:00 | 8.8 | 136.3 | 3.3 | - | 26.8 | 13.5 |
| 2024-05-09 05:00 | 7.8 | 135.5 | 3.5 | - | 26.9 | 14.0 |
| 2024-05-09 04:00 | 9.8 | 129.1 | 3.7 | - | 27.9 | 15.4 |
| 2024-05-09 03:00 | 9.2 | 135.3 | 3.1 | - | 23.6 | 11.7 |
| 2024-05-09 02:00 | 9.9 | 138.2 | 3.0 | - | 23.5 | 12.0 |
| 2024-05-09 01:00 | 11.7 | 141.4 | 3.4 | - | 23.2 | 13.1 |
| 2024-05-09 00:00 | 21.3 | - | 3.0 | - | 22.2 | 12.2 |
| 2024-05-08 23:00 | 22.5 | 143.5 | 3.1 | - | 25.1 | 16.2 |
| 2024-05-08 22:00 | 24.0 | 143.7 | 3.1 | - | 28.1 | 19.5 |
| 2024-05-08 21:00 | 29.9 | 138.1 | 3.4 | - | 39.2 | 30.5 |
| 2024-05-08 20:00 | 41.3 | 142.0 | 4.0 | - | 46.8 | 38.0 |
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.