Past 24 Hours Pollutant Concentration Summary
Mong Kok
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2024-05-04 03:00 | 36.6 | 100.4 | 1.5 | 390.6 | 35.8 | 17.7 |
| 2024-05-04 02:00 | 32.4 | 105.6 | 1.4 | 396.4 | 38.3 | 18.9 |
| 2024-05-04 01:00 | 55.1 | 86.8 | 1.6 | 453.7 | 36.6 | 19.1 |
| 2024-05-04 00:00 | 74.5 | 62.8 | 1.7 | 540.6 | 41.7 | 23.1 |
| 2024-05-03 23:00 | 92.3 | 52.9 | 1.8 | 550.2 | 46.2 | 23.8 |
| 2024-05-03 22:00 | 88.8 | 56.9 | 1.9 | 558.3 | 51.0 | 26.0 |
| 2024-05-03 21:00 | 94.8 | 51.4 | 1.9 | 624.3 | 53.0 | 27.6 |
| 2024-05-03 20:00 | 93.9 | 47.6 | 2.1 | 592.0 | 55.4 | 28.4 |
| 2024-05-03 19:00 | 118.2 | 33.6 | 3.1 | 629.8 | 48.7 | 22.7 |
| 2024-05-03 18:00 | 113.8 | 35.0 | 2.6 | 584.6 | 43.4 | 20.8 |
| 2024-05-03 17:00 | 113.6 | 37.2 | 2.7 | 594.2 | 39.7 | 21.8 |
| 2024-05-03 16:00 | 115.8 | 43.2 | 2.7 | 572.2 | 41.3 | 24.5 |
| 2024-05-03 15:00 | 109.0 | 45.7 | 2.8 | 557.7 | 39.9 | 23.9 |
| 2024-05-03 14:00 | 95.6 | 52.1 | 2.4 | 501.8 | 40.8 | 24.0 |
| 2024-05-03 13:00 | 84.7 | 58.6 | 2.0 | 485.7 | 39.2 | 20.1 |
| 2024-05-03 12:00 | 79.6 | 55.8 | 2.0 | 444.0 | 39.3 | 18.2 |
| 2024-05-03 11:00 | 76.9 | 53.1 | 1.8 | 265.6 | 41.9 | 20.1 |
| 2024-05-03 10:00 | 76.2 | 50.5 | 1.9 | 263.7 | 35.7 | 15.0 |
| 2024-05-03 09:00 | 66.8 | 56.8 | 1.6 | 215.5 | 25.5 | 12.1 |
| 2024-05-03 08:00 | 71.0 | 50.3 | 1.6 | 255.4 | 26.4 | 14.7 |
| 2024-05-03 07:00 | 46.6 | 73.7 | 1.2 | 201.0 | 27.7 | 13.6 |
| 2024-05-03 06:00 | 21.0 | 102.6 | 1.1 | 194.3 | 25.6 | 12.2 |
| 2024-05-03 05:00 | 23.1 | 102.4 | 1.2 | 186.9 | 27.8 | 11.9 |
| 2024-05-03 04:00 | 25.6 | 102.5 | 1.4 | 159.0 | 25.6 | 11.9 |
Remarks:
(1) Time shown is in Hong Kong time.
(2) Concentration shown is in microgram per cubic metre (µg/m3).
(3) Abbreviation:
NO2 - nitrogen dioxide, O3 - ozone,
SO2 - sulphur dioxide, CO - carbon monoxide,
PM10 - respirable suspended particulates,
PM2.5 - fine suspended particulates
(4) The pollutant concentration is based on real time data taken directly from EPD's Air Quality Monitoring Network.