Southern
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2021-10-16 17:00 | 28.3 | 89.5 | 2.2 | 605.7 | 21.4 | 11.3 |
| 2021-10-16 16:00 | 24.8 | 94.9 | 2.2 | 576.1 | 23.8 | 10.6 |
| 2021-10-16 15:00 | 26.0 | 96.4 | 2.5 | 558.2 | 22.1 | 11.8 |
| 2021-10-16 14:00 | 22.1 | 96.3 | 2.5 | 530.8 | 28.5 | 12.9 |
| 2021-10-16 13:00 | 25.1 | 89.8 | 1.8 | 502.5 | 28.2 | 17.5 |
| 2021-10-16 12:00 | 27.4 | 76.4 | 1.6 | 553.4 | 27.0 | 15.7 |
| 2021-10-16 11:00 | 31.3 | 56.1 | 1.8 | 601.3 | 24.6 | 14.4 |
| 2021-10-16 10:00 | 28.3 | 41.6 | 2.0 | 603.9 | 23.6 | 16.7 |
| 2021-10-16 09:00 | 24.2 | 35.8 | 1.8 | 601.7 | 20.9 | 14.2 |
| 2021-10-16 08:00 | 28.3 | 25.8 | 2.0 | 585.8 | 19.5 | 10.9 |
| 2021-10-16 07:00 | 19.1 | 37.0 | 1.6 | 472.2 | 21.9 | 9.7 |
| 2021-10-16 06:00 | 12.1 | 50.6 | 1.7 | 396.6 | 22.0 | 9.8 |
| 2021-10-16 05:00 | 9.9 | 55.4 | 1.8 | 392.8 | 21.2 | 11.5 |
| 2021-10-16 04:00 | 10.8 | 57.6 | 2.0 | 382.8 | 21.1 | 12.2 |
| 2021-10-16 03:00 | 9.3 | 60.9 | 2.1 | 353.5 | 21.9 | 6.7 |
| 2021-10-16 02:00 | 9.8 | 62.4 | 1.7 | 351.9 | 18.7 | 4.1 |
| 2021-10-16 01:00 | 13.6 | 57.0 | 1.3 | 374.6 | 16.3 | 9.1 |
| 2021-10-16 00:00 | 16.6 | 53.7 | 1.5 | 393.8 | 12.1 | 9.9 |
| 2021-10-15 23:00 | 28.0 | 36.7 | 1.8 | 472.9 | 7.2 | 6.9 |
| 2021-10-15 22:00 | 29.5 | 36.7 | 2.3 | 423.1 | 8.9 | 5.1 |
| 2021-10-15 21:00 | 28.2 | 38.4 | 1.9 | 429.8 | 14.9 | 7.3 |
| 2021-10-15 20:00 | 17.8 | 54.8 | 1.3 | 384.1 | 11.1 | 5.8 |
| 2021-10-15 19:00 | 13.2 | 54.7 | 1.2 | 383.0 | 6.7 | 3.7 |
| 2021-10-15 18:00 | 16.7 | 49.8 | 1.3 | 376.1 | 7.1 | 2.4 |
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.
