Southern
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2021-06-15 20:00 | 23.2 | 39.4 | 2.6 | 209.4 | 20.4 | 18.0 |
| 2021-06-15 19:00 | 26.4 | 39.7 | 2.8 | 217.0 | 20.6 | - |
| 2021-06-15 18:00 | 30.2 | 36.2 | 3.7 | 205.1 | 25.1 | 10.3 |
| 2021-06-15 17:00 | 28.2 | 43.4 | 4.2 | 205.5 | 18.6 | 6.5 |
| 2021-06-15 16:00 | 26.3 | 51.5 | 5.0 | 187.3 | 14.9 | 5.2 |
| 2021-06-15 15:00 | 24.1 | 60.0 | 4.0 | 182.5 | 12.7 | 7.9 |
| 2021-06-15 14:00 | 27.3 | 53.1 | 4.0 | 178.3 | 15.4 | 8.3 |
| 2021-06-15 13:00 | 30.6 | 41.8 | 6.6 | 209.2 | 19.7 | 4.2 |
| 2021-06-15 12:00 | 24.7 | 46.7 | 4.7 | 242.7 | 17.3 | 2.4 |
| 2021-06-15 11:00 | 31.2 | 38.9 | 6.8 | 258.0 | 14.8 | 6.6 |
| 2021-06-15 10:00 | 24.4 | 39.7 | 4.9 | 273.3 | 16.5 | 9.4 |
| 2021-06-15 09:00 | 33.2 | 27.8 | 4.4 | 287.6 | 16.9 | 8.3 |
| 2021-06-15 08:00 | 35.0 | 26.4 | 3.9 | 323.7 | 17.7 | 5.6 |
| 2021-06-15 07:00 | 24.2 | 35.0 | 4.3 | 240.8 | 17.9 | 4.9 |
| 2021-06-15 06:00 | 20.7 | 38.1 | 3.9 | 241.9 | 13.9 | 4.5 |
| 2021-06-15 05:00 | 10.0 | 49.2 | 3.5 | 231.8 | 13.4 | 4.7 |
| 2021-06-15 04:00 | 21.6 | 39.9 | 4.9 | 231.1 | 13.6 | 3.8 |
| 2021-06-15 03:00 | 40.1 | 21.3 | 6.1 | 219.8 | 12.1 | 6.0 |
| 2021-06-15 02:00 | 15.2 | 44.6 | 4.1 | 214.1 | 14.1 | 9.2 |
| 2021-06-15 01:00 | 27.9 | 33.4 | 4.6 | 235.4 | 10.5 | 3.4 |
| 2021-06-15 00:00 | 22.1 | 37.0 | 4.3 | 222.3 | 11.1 | 2.7 |
| 2021-06-14 23:00 | 21.1 | 39.3 | 4.1 | 225.0 | 15.5 | 5.7 |
| 2021-06-14 22:00 | 41.0 | 20.3 | 5.3 | 225.2 | 15.6 | 6.6 |
| 2021-06-14 21:00 | 41.4 | 19.1 | 5.7 | 245.0 | 19.4 | 3.4 |
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.
