Past 24 Hours Pollutant Concentration Summary
North
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2022-11-27 11:00 | 15.5 | 75.9 | 1.3 | 196.4 | - | - |
| 2022-11-27 10:00 | 17.5 | 73.4 | 1.4 | 236.2 | 2.9 | 1.6 |
| 2022-11-27 09:00 | 18.0 | 73.0 | 1.4 | 219.5 | 15.1 | 10.0 |
| 2022-11-27 08:00 | 16.2 | 72.7 | 1.3 | 232.8 | 14.7 | 7.7 |
| 2022-11-27 07:00 | 12.7 | 69.4 | 1.7 | 267.4 | 12.5 | 6.3 |
| 2022-11-27 06:00 | 11.0 | 71.4 | 1.8 | 296.9 | 13.4 | 9.4 |
| 2022-11-27 05:00 | 7.9 | 76.5 | 2.1 | 278.6 | 16.9 | 11.5 |
| 2022-11-27 04:00 | 8.3 | 73.4 | 2.6 | 299.8 | 17.8 | 12.5 |
| 2022-11-27 03:00 | 9.9 | 72.4 | 2.6 | 252.5 | 16.1 | 10.4 |
| 2022-11-27 02:00 | 9.3 | 75.8 | 2.5 | 249.9 | 18.4 | 11.8 |
| 2022-11-27 01:00 | 12.7 | 67.9 | 2.7 | 258.0 | 14.4 | 12.4 |
| 2022-11-27 00:00 | 13.4 | 64.1 | 1.8 | 255.7 | 10.8 | 9.7 |
| 2022-11-26 23:00 | 18.1 | 48.8 | 1.6 | 393.0 | 8.2 | 7.6 |
| 2022-11-26 22:00 | 24.7 | 42.3 | 1.7 | 284.2 | 8.5 | 8.2 |
| 2022-11-26 21:00 | 24.8 | 42.9 | 1.5 | 505.3 | 14.3 | 12.8 |
| 2022-11-26 20:00 | 27.5 | 44.8 | 1.4 | 309.7 | 17.5 | 15.4 |
| 2022-11-26 19:00 | 33.4 | 40.0 | 1.5 | 398.1 | 13.3 | - |
| 2022-11-26 18:00 | 40.2 | 38.7 | 1.8 | 384.8 | 10.4 | - |
| 2022-11-26 17:00 | 46.7 | 35.5 | 1.8 | 342.6 | 7.8 | - |
| 2022-11-26 16:00 | 40.5 | 41.0 | 1.7 | 305.4 | 12.0 | 8.5 |
| 2022-11-26 15:00 | 36.6 | 39.7 | 1.8 | 270.5 | 15.1 | 7.7 |
| 2022-11-26 14:00 | 37.2 | 26.5 | 1.7 | 320.3 | 11.8 | 6.7 |
| 2022-11-26 13:00 | 34.8 | 28.7 | 1.7 | 326.6 | 10.3 | 5.4 |
| 2022-11-26 12:00 | 31.2 | 30.3 | 1.6 | 287.0 | 9.5 | 6.6 |
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.