Southern
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2024-05-11 00:00 | 9.5 | 98.0 | 0.9 | 554.2 | 26.0 | 7.9 |
| 2024-05-10 23:00 | 11.7 | 97.7 | 1.3 | 557.2 | 24.6 | 3.6 |
| 2024-05-10 22:00 | 11.1 | 99.5 | 1.2 | 549.3 | 22.8 | 3.3 |
| 2024-05-10 21:00 | 10.9 | 103.4 | 1.2 | 546.7 | 21.1 | 9.2 |
| 2024-05-10 20:00 | 14.2 | 103.5 | 1.0 | 547.0 | 20.3 | 16.3 |
| 2024-05-10 19:00 | 17.4 | 101.1 | 0.8 | 564.0 | 20.3 | 13.5 |
| 2024-05-10 18:00 | 18.3 | 98.9 | 0.5 | 562.5 | 22.1 | 5.3 |
| 2024-05-10 17:00 | 22.0 | 105.1 | 0.7 | 543.5 | 23.3 | 9.4 |
| 2024-05-10 16:00 | - | 112.0 | - | - | 36.8 | 12.1 |
| 2024-05-10 15:00 | 24.0 | 112.3 | 0.1 | 564.2 | 36.6 | 5.8 |
| 2024-05-10 14:00 | 21.1 | 108.6 | 0.0 | 557.1 | 32.1 | 6.8 |
| 2024-05-10 13:00 | 20.1 | 111.1 | 1.4 | 586.3 | 34.0 | 11.9 |
| 2024-05-10 12:00 | 22.4 | 109.7 | 1.8 | 587.8 | 31.5 | 9.0 |
| 2024-05-10 11:00 | 21.4 | 112.7 | 1.5 | 595.7 | 38.1 | 9.5 |
| 2024-05-10 10:00 | 20.2 | 115.4 | 1.6 | 599.0 | 35.2 | 13.6 |
| 2024-05-10 09:00 | 25.2 | 116.6 | 1.7 | 628.1 | 28.0 | 14.6 |
| 2024-05-10 08:00 | 24.1 | 116.3 | 1.7 | 626.8 | 24.5 | 11.4 |
| 2024-05-10 07:00 | 17.3 | 119.9 | 1.3 | 610.7 | 30.5 | 13.3 |
| 2024-05-10 06:00 | 11.8 | 129.5 | 1.4 | 614.5 | 38.8 | 12.5 |
| 2024-05-10 05:00 | 9.2 | 131.2 | 1.4 | 606.4 | 37.3 | 8.2 |
| 2024-05-10 04:00 | 7.6 | 136.9 | 1.2 | 607.0 | 38.2 | 12.4 |
| 2024-05-10 03:00 | 8.3 | 143.1 | 1.3 | 615.3 | 39.9 | 16.0 |
| 2024-05-10 02:00 | 8.8 | 150.0 | 1.5 | 630.7 | 39.1 | 15.7 |
| 2024-05-10 01:00 | 11.4 | 154.1 | 1.5 | 640.1 | 33.9 | 13.4 |
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.