Southern
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2023-03-27 21:00 | 24.8 | 31.8 | 0.9 | 440.2 | 11.9 | 6.2 |
| 2023-03-27 20:00 | 29.4 | 34.5 | 0.9 | 445.0 | 17.4 | 6.3 |
| 2023-03-27 19:00 | 30.6 | 41.9 | 1.3 | 435.1 | 16.9 | 9.2 |
| 2023-03-27 18:00 | 38.4 | 38.8 | 1.2 | 402.6 | 13.7 | 11.4 |
| 2023-03-27 17:00 | 45.0 | 39.4 | 1.3 | 393.9 | 16.1 | 5.0 |
| 2023-03-27 16:00 | - | 49.5 | - | - | 22.9 | 3.8 |
| 2023-03-27 15:00 | - | 62.3 | - | - | 25.5 | 6.9 |
| 2023-03-27 14:00 | 27.7 | 74.4 | 7.4 | 302.6 | 27.4 | 11.7 |
| 2023-03-27 13:00 | 23.7 | 76.6 | 6.6 | 293.8 | 24.2 | 9.5 |
| 2023-03-27 12:00 | 20.5 | 78.3 | 6.3 | 281.7 | 23.2 | 4.5 |
| 2023-03-27 11:00 | 24.2 | 71.5 | 6.4 | 290.6 | 27.7 | 7.4 |
| 2023-03-27 10:00 | 20.7 | 72.3 | 6.1 | 281.9 | 32.2 | 9.7 |
| 2023-03-27 09:00 | 17.4 | 75.9 | 6.2 | 294.8 | 29.7 | 6.5 |
| 2023-03-27 08:00 | 16.6 | 78.6 | 6.1 | 294.2 | 18.9 | 4.3 |
| 2023-03-27 07:00 | 14.0 | 78.6 | 6.3 | 268.0 | 8.9 | - |
| 2023-03-27 06:00 | 10.1 | 83.5 | 6.1 | 265.0 | 5.8 | 0.2 |
| 2023-03-27 05:00 | 6.4 | 84.0 | 6.0 | 274.3 | 11.7 | 7.1 |
| 2023-03-27 04:00 | 6.5 | 74.3 | 6.3 | 296.5 | 15.1 | 10.4 |
| 2023-03-27 03:00 | 6.6 | 70.1 | 6.2 | 304.9 | 16.4 | 9.1 |
| 2023-03-27 02:00 | 7.6 | 62.6 | 6.2 | 322.5 | 16.3 | 4.5 |
| 2023-03-27 01:00 | 12.3 | 58.5 | 6.3 | 331.0 | 14.9 | 5.0 |
| 2023-03-27 00:00 | 12.6 | 59.1 | 6.2 | 344.8 | 15.2 | 7.5 |
| 2023-03-26 23:00 | 13.2 | 52.2 | 6.0 | 378.8 | 10.8 | - |
| 2023-03-26 22:00 | 13.0 | 55.4 | 6.2 | 376.9 | 6.6 | 6.3 |
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.
