Central
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2024-05-05 05:00 | 50.4 | 45.9 | 2.1 | 271.9 | 9.1 | 6.0 |
| 2024-05-05 04:00 | 53.8 | 34.5 | 2.1 | 383.3 | 11.9 | 9.5 |
| 2024-05-05 03:00 | 66.4 | 15.7 | 2.8 | 624.0 | 12.6 | 8.8 |
| 2024-05-05 02:00 | 77.4 | 5.5 | 2.8 | 790.3 | 11.4 | 8.5 |
| 2024-05-05 01:00 | 73.3 | 20.1 | 2.3 | 526.8 | 13.2 | 10.0 |
| 2024-05-05 00:00 | 76.9 | 25.3 | 2.4 | 449.7 | 31.2 | 28.1 |
| 2024-05-04 23:00 | 103.5 | 12.8 | 3.1 | 666.9 | 21.5 | 19.4 |
| 2024-05-04 22:00 | 96.7 | 18.6 | 3.1 | 823.8 | 22.5 | 21.6 |
| 2024-05-04 21:00 | 103.9 | 16.5 | 2.7 | 744.5 | 17.3 | 15.1 |
| 2024-05-04 20:00 | 112.0 | 17.3 | 3.6 | 682.1 | 15.1 | 12.5 |
| 2024-05-04 19:00 | 114.6 | 18.0 | 3.4 | 662.7 | 12.5 | 10.7 |
| 2024-05-04 18:00 | 74.1 | 35.9 | 2.2 | 540.9 | 15.4 | 12.8 |
| 2024-05-04 17:00 | 78.7 | 34.1 | 2.5 | 454.9 | 12.3 | 10.8 |
| 2024-05-04 16:00 | 82.0 | 29.7 | 2.9 | 530.6 | 13.5 | 11.9 |
| 2024-05-04 15:00 | 70.8 | 40.9 | 2.1 | 451.1 | 18.4 | 15.1 |
| 2024-05-04 14:00 | 70.5 | 41.7 | 2.3 | 470.6 | 13.2 | 9.1 |
| 2024-05-04 13:00 | 66.1 | 49.2 | 2.2 | 435.0 | 8.8 | 6.7 |
| 2024-05-04 12:00 | 82.1 | 36.7 | 2.4 | 591.8 | 16.6 | 14.1 |
| 2024-05-04 11:00 | 77.6 | 40.1 | 2.1 | 414.6 | 13.8 | 10.6 |
| 2024-05-04 10:00 | 80.1 | 29.4 | 2.0 | 394.0 | 4.2 | 2.4 |
| 2024-05-04 09:00 | 91.6 | 19.1 | 2.5 | 434.4 | 5.6 | 3.8 |
| 2024-05-04 08:00 | 76.9 | 31.9 | 2.0 | 395.1 | 5.2 | 5.0 |
| 2024-05-04 07:00 | 46.3 | 70.6 | 1.6 | 324.2 | 2.8 | - |
| 2024-05-04 06:00 | 35.9 | 81.1 | 1.5 | 323.0 | 5.7 | 4.6 |
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.