Southern
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2024-05-09 20:00 | 13.5 | 154.0 | 1.4 | 621.6 | 39.3 | 12.8 |
| 2024-05-09 19:00 | 19.2 | 156.7 | 1.7 | 656.3 | 45.1 | 11.1 |
| 2024-05-09 18:00 | 23.9 | 161.5 | 2.0 | 704.7 | 47.3 | 18.7 |
| 2024-05-09 17:00 | 23.9 | 168.9 | 2.1 | 718.8 | 40.6 | 23.6 |
| 2024-05-09 16:00 | 22.5 | 175.2 | 2.5 | 728.4 | 44.3 | 28.5 |
| 2024-05-09 15:00 | 20.5 | 173.1 | 2.6 | 729.5 | 54.5 | 27.3 |
| 2024-05-09 14:00 | 19.0 | 173.9 | 3.0 | 744.6 | 52.8 | 22.4 |
| 2024-05-09 13:00 | 21.9 | 170.3 | 1.7 | 737.1 | 54.4 | 20.1 |
| 2024-05-09 12:00 | 21.9 | 159.8 | 1.4 | 739.9 | 52.3 | 16.4 |
| 2024-05-09 11:00 | 20.4 | 152.1 | 1.3 | 751.0 | 42.7 | 14.6 |
| 2024-05-09 10:00 | 21.4 | 143.7 | 1.2 | 764.6 | 36.9 | 15.1 |
| 2024-05-09 09:00 | 22.0 | 134.6 | 1.4 | 770.6 | 35.2 | 16.1 |
| 2024-05-09 08:00 | 20.8 | 130.6 | 1.3 | 763.2 | 30.5 | 11.4 |
| 2024-05-09 07:00 | 19.4 | 127.6 | 1.1 | 751.1 | 27.8 | 10.6 |
| 2024-05-09 06:00 | 11.7 | 134.3 | 1.4 | 716.7 | 29.7 | 16.2 |
| 2024-05-09 05:00 | 7.7 | 137.2 | 1.6 | 719.5 | 30.5 | 18.7 |
| 2024-05-09 04:00 | 10.8 | 129.6 | 2.3 | 719.1 | 30.8 | 13.9 |
| 2024-05-09 03:00 | 6.9 | 135.7 | 1.3 | 697.7 | 26.4 | 4.5 |
| 2024-05-09 02:00 | 7.0 | 137.5 | 1.1 | 714.7 | 22.3 | 4.5 |
| 2024-05-09 01:00 | 9.8 | 139.5 | 1.3 | 735.8 | 23.1 | 10.3 |
| 2024-05-09 00:00 | 10.2 | 143.7 | 1.4 | 757.0 | 25.6 | 16.3 |
| 2024-05-08 23:00 | 12.9 | 147.5 | 1.2 | 789.7 | 30.0 | 19.3 |
| 2024-05-08 22:00 | 13.4 | 145.1 | 1.5 | 785.0 | 35.4 | 22.9 |
| 2024-05-08 21:00 | 13.0 | 144.9 | 1.7 | 768.7 | 38.8 | 27.0 |
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.