Southern
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2022-01-23 02:00 | 12.1 | 71.5 | 0.5 | 345.1 | 15.2 | 4.4 |
| 2022-01-23 01:00 | 14.0 | 69.6 | 0.7 | 358.2 | 11.4 | 3.6 |
| 2022-01-23 00:00 | 15.9 | 69.9 | 0.6 | 385.2 | 7.8 | 6.4 |
| 2022-01-22 23:00 | 20.1 | 65.5 | 0.6 | 389.2 | 4.3 | - |
| 2022-01-22 22:00 | 12.7 | 70.6 | 0.6 | 365.0 | 2.9 | 2.5 |
| 2022-01-22 21:00 | 12.0 | 74.0 | 0.6 | 345.7 | 2.4 | 1.0 |
| 2022-01-22 20:00 | 16.2 | 72.6 | 0.5 | 341.0 | 1.8 | 0.5 |
| 2022-01-22 19:00 | 19.4 | 70.4 | 0.6 | 356.4 | 4.3 | 3.0 |
| 2022-01-22 18:00 | 32.4 | 55.4 | 0.6 | 423.4 | 8.3 | 2.7 |
| 2022-01-22 17:00 | 28.9 | 59.7 | 0.6 | 441.0 | 7.6 | - |
| 2022-01-22 16:00 | 29.6 | 60.0 | 0.6 | 388.5 | 9.8 | - |
| 2022-01-22 15:00 | 32.2 | 56.6 | 0.5 | 400.8 | 11.3 | 3.2 |
| 2022-01-22 14:00 | 28.4 | 58.9 | 0.2 | 393.5 | 9.2 | 2.6 |
| 2022-01-22 13:00 | 26.8 | 56.0 | 0.7 | 455.4 | 8.1 | 4.4 |
| 2022-01-22 12:00 | 31.0 | 49.8 | 1.0 | 542.8 | 8.6 | 5.2 |
| 2022-01-22 11:00 | 38.9 | 45.7 | 1.2 | 521.4 | 6.2 | 3.6 |
| 2022-01-22 10:00 | 34.0 | 44.5 | 0.9 | 540.1 | 5.2 | - |
| 2022-01-22 09:00 | 35.4 | 35.9 | 0.8 | 629.1 | 3.7 | - |
| 2022-01-22 08:00 | 25.1 | 41.9 | 0.9 | 605.3 | 5.8 | - |
| 2022-01-22 07:00 | 26.4 | 41.0 | 0.9 | 596.6 | 6.0 | - |
| 2022-01-22 06:00 | 21.2 | 50.7 | 0.7 | 579.0 | 4.0 | 2.2 |
| 2022-01-22 05:00 | 11.4 | 66.0 | 0.6 | 534.5 | 7.5 | - |
| 2022-01-22 04:00 | 10.8 | 69.5 | 0.8 | 543.6 | 9.9 | - |
| 2022-01-22 03:00 | 14.2 | 70.7 | 0.8 | 510.5 | 14.1 | 9.4 |
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.
