Mong Kok
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2021-12-04 09:00 | 67.8 | 42.9 | 4.0 | 517.3 | 20.4 | 8.7 |
| 2021-12-04 08:00 | 65.6 | 43.0 | 4.2 | 517.8 | 20.4 | 10.9 |
| 2021-12-04 07:00 | 33.1 | 70.2 | 3.4 | 437.2 | 18.8 | 9.8 |
| 2021-12-04 06:00 | 20.9 | 80.5 | 3.6 | 435.4 | 17.6 | 8.8 |
| 2021-12-04 05:00 | 20.7 | 82.5 | 3.8 | 426.5 | 16.8 | 7.9 |
| 2021-12-04 04:00 | 17.7 | 83.8 | 4.3 | 429.1 | 18.6 | 8.9 |
| 2021-12-04 03:00 | 19.9 | 80.5 | 4.5 | 419.9 | 19.2 | 8.8 |
| 2021-12-04 02:00 | 28.5 | 72.4 | 5.3 | 460.0 | 25.5 | 11.6 |
| 2021-12-04 01:00 | 47.5 | 56.5 | 5.8 | 503.2 | 32.4 | 13.9 |
| 2021-12-04 00:00 | 60.6 | 47.1 | 6.0 | 533.3 | 33.8 | 15.1 |
| 2021-12-03 23:00 | 50.8 | 55.6 | 4.5 | 511.0 | 35.1 | 15.9 |
| 2021-12-03 22:00 | 55.1 | 57.0 | 3.6 | 512.5 | 33.1 | 14.7 |
| 2021-12-03 21:00 | 87.3 | 34.0 | 4.7 | 583.0 | 37.4 | 19.0 |
| 2021-12-03 20:00 | 106.3 | 23.7 | 4.3 | 672.5 | 35.5 | 15.4 |
| 2021-12-03 19:00 | 108.8 | 22.4 | 4.6 | 641.6 | 34.3 | 12.7 |
| 2021-12-03 18:00 | 105.9 | 30.2 | 4.0 | 583.2 | 36.6 | 13.6 |
| 2021-12-03 17:00 | 98.6 | 36.2 | 4.8 | 584.1 | 32.6 | 10.7 |
| 2021-12-03 16:00 | 81.6 | 47.4 | 4.6 | 541.7 | 33.7 | 12.3 |
| 2021-12-03 15:00 | 71.5 | 64.7 | 3.9 | 520.8 | 28.8 | 8.8 |
| 2021-12-03 14:00 | 75.1 | 58.0 | 3.6 | 504.5 | 28.6 | 10.7 |
| 2021-12-03 13:00 | 57.9 | 63.9 | 3.2 | 480.4 | 27.2 | 10.9 |
| 2021-12-03 12:00 | 68.6 | 48.9 | 3.8 | 526.6 | 27.9 | 11.9 |
| 2021-12-03 11:00 | 46.1 | 62.3 | 3.2 | 461.6 | 25.6 | 11.3 |
| 2021-12-03 10:00 | 60.1 | 48.1 | 4.0 | 484.8 | 25.3 | 11.0 |
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.
