Central/Western
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2024-05-12 22:00 | 83.1 | 13.0 | 5.4 | - | 25.7 | 18.1 |
| 2024-05-12 21:00 | 89.0 | 10.9 | 5.5 | - | 21.9 | 14.1 |
| 2024-05-12 20:00 | 102.9 | 4.5 | 4.5 | - | 18.9 | 11.3 |
| 2024-05-12 19:00 | 93.0 | 19.6 | 3.7 | - | 14.0 | 9.8 |
| 2024-05-12 18:00 | 53.6 | 64.8 | 3.5 | - | 22.6 | 13.4 |
| 2024-05-12 17:00 | 44.5 | 54.1 | 3.7 | - | 26.4 | 13.0 |
| 2024-05-12 16:00 | 39.5 | 75.1 | 4.0 | - | 29.7 | 15.7 |
| 2024-05-12 15:00 | 33.3 | 79.3 | 4.6 | - | 28.0 | 15.2 |
| 2024-05-12 14:00 | 22.4 | 73.3 | 6.4 | - | 22.3 | 11.4 |
| 2024-05-12 13:00 | 19.7 | 68.5 | 5.3 | - | 22.0 | 11.2 |
| 2024-05-12 12:00 | 27.2 | 49.7 | 5.3 | - | 30.6 | 16.4 |
| 2024-05-12 11:00 | 59.6 | 27.1 | 9.7 | - | 29.9 | 15.2 |
| 2024-05-12 10:00 | 56.0 | 27.2 | 14.1 | - | 31.3 | 16.2 |
| 2024-05-12 09:00 | 46.0 | 31.3 | 6.1 | - | 31.4 | 15.9 |
| 2024-05-12 08:00 | 47.0 | 27.8 | 4.2 | - | 28.8 | 14.4 |
| 2024-05-12 07:00 | 31.3 | 43.4 | 3.4 | - | 25.0 | 10.9 |
| 2024-05-12 06:00 | 19.9 | 55.6 | 3.2 | - | 28.5 | 13.4 |
| 2024-05-12 05:00 | 15.5 | 64.5 | 3.2 | - | 30.4 | 14.5 |
| 2024-05-12 04:00 | 15.2 | 67.1 | 3.2 | - | 27.4 | 13.3 |
| 2024-05-12 03:00 | 17.0 | 70.9 | 3.5 | - | 29.3 | 14.5 |
| 2024-05-12 02:00 | 28.0 | 65.7 | 4.0 | - | 30.3 | 15.5 |
| 2024-05-12 01:00 | - | 71.0 | - | - | 29.1 | 15.4 |
| 2024-05-12 00:00 | 22.0 | 78.0 | 3.1 | - | 29.6 | 15.7 |
| 2024-05-11 23:00 | 31.9 | 74.7 | 3.3 | - | 28.6 | 14.4 |
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.
