Southern
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2022-01-25 01:00 | 19.8 | 67.5 | 1.0 | 533.7 | 22.2 | 10.3 |
| 2022-01-25 00:00 | 18.2 | 68.3 | 1.1 | 526.0 | 19.7 | 5.9 |
| 2022-01-24 23:00 | 29.7 | 57.6 | 1.2 | 545.2 | 12.9 | 5.1 |
| 2022-01-24 22:00 | 23.2 | 64.5 | 1.0 | 486.4 | 9.5 | 7.6 |
| 2022-01-24 21:00 | 25.1 | 64.8 | 1.0 | 539.8 | 17.4 | 14.0 |
| 2022-01-24 20:00 | 28.0 | 68.8 | 1.1 | 559.9 | 23.1 | 17.2 |
| 2022-01-24 19:00 | 30.5 | 67.4 | 1.2 | 633.0 | 24.6 | 20.8 |
| 2022-01-24 18:00 | 37.2 | 68.5 | 1.6 | - | 18.5 | 14.1 |
| 2022-01-24 17:00 | 35.0 | 71.8 | 1.4 | - | 16.1 | 9.5 |
| 2022-01-24 16:00 | 35.3 | 64.7 | 1.4 | - | 19.5 | 7.1 |
| 2022-01-24 15:00 | 29.2 | 71.7 | 1.5 | - | 12.6 | 5.8 |
| 2022-01-24 14:00 | 26.3 | 77.3 | 1.5 | 603.5 | 6.0 | - |
| 2022-01-24 13:00 | 24.2 | 69.5 | 1.7 | 593.2 | 11.1 | 7.0 |
| 2022-01-24 12:00 | 25.5 | 59.7 | 2.0 | 554.1 | 18.9 | 11.2 |
| 2022-01-24 11:00 | 48.7 | 34.0 | 4.5 | 685.2 | 25.3 | 16.7 |
| 2022-01-24 10:00 | 57.1 | 16.9 | 4.0 | 711.8 | 29.0 | 17.0 |
| 2022-01-24 09:00 | 57.6 | 9.5 | 3.1 | 772.5 | 23.4 | 18.0 |
| 2022-01-24 08:00 | 58.4 | 5.0 | 4.0 | 771.0 | 17.8 | 16.0 |
| 2022-01-24 07:00 | 62.1 | 3.0 | 3.3 | 796.2 | 14.8 | 9.6 |
| 2022-01-24 06:00 | 54.6 | 2.9 | 2.8 | 722.7 | 11.2 | - |
| 2022-01-24 05:00 | - | 2.9 | 2.4 | 706.4 | 10.6 | - |
| 2022-01-24 04:00 | 57.2 | 2.9 | 2.3 | 713.9 | 20.0 | 13.0 |
| 2022-01-24 03:00 | 67.1 | 2.9 | 4.2 | 660.8 | 24.4 | 14.5 |
| 2022-01-24 02:00 | 85.3 | 3.1 | 5.6 | 607.4 | 22.1 | 13.8 |
Remarks:
(1) Time shown is in Hong Kong time.
(2) NO2 - nitrogen dioxide, O3 - ozone,
SO2 - sulphur dioxide, CO - carbon monoxide,
PM10 - respirable suspended particulates,
PM2.5 - fine suspended particulates
(3) Concentration shown is in µg/m3.
(4) The pollutant concentration is based on real time data taken directly from EPD's Air Quality Monitoring Network.
