Tuen Mun
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2024-04-20 04:00 | 13.6 | 44.1 | 3.6 | 574.1 | 20.0 | 10.2 |
| 2024-04-20 03:00 | 11.2 | 48.1 | 3.6 | 580.4 | 17.1 | 14.8 |
| 2024-04-20 02:00 | 14.1 | 43.9 | 3.6 | 582.2 | 19.9 | 12.1 |
| 2024-04-20 01:00 | 18.0 | 39.7 | 3.6 | 591.0 | 24.8 | 22.6 |
| 2024-04-20 00:00 | 25.8 | 30.0 | 3.8 | 605.5 | 20.1 | 16.1 |
| 2024-04-19 23:00 | 24.5 | 32.1 | 3.7 | 612.3 | 21.0 | 19.9 |
| 2024-04-19 22:00 | 22.7 | 35.0 | 3.5 | 608.1 | 22.0 | 15.2 |
| 2024-04-19 21:00 | 29.7 | 33.3 | 3.6 | 634.2 | 32.6 | 18.9 |
| 2024-04-19 20:00 | 34.0 | 30.0 | 3.7 | 638.7 | 22.4 | 17.1 |
| 2024-04-19 19:00 | 42.4 | 27.6 | 3.9 | 635.1 | 24.9 | 16.0 |
| 2024-04-19 18:00 | 34.1 | 34.4 | 3.7 | 612.7 | 25.0 | 15.0 |
| 2024-04-19 17:00 | 34.0 | 37.1 | 3.8 | 596.6 | 22.1 | 16.9 |
| 2024-04-19 16:00 | 31.4 | 39.1 | 3.8 | 610.7 | 31.7 | 11.2 |
| 2024-04-19 15:00 | 38.5 | 33.7 | 3.8 | 644.5 | 24.3 | 15.8 |
| 2024-04-19 14:00 | 31.8 | 37.9 | 3.6 | 601.9 | 22.1 | 17.9 |
| 2024-04-19 13:00 | 22.4 | 46.8 | 3.7 | 581.3 | 21.0 | 13.2 |
| 2024-04-19 12:00 | 20.1 | 44.0 | 3.6 | 585.1 | 29.7 | 15.9 |
| 2024-04-19 11:00 | 32.9 | 33.1 | 4.0 | 606.2 | 31.9 | 17.9 |
| 2024-04-19 10:00 | 41.1 | 20.9 | 4.3 | 641.9 | 17.5 | 10.3 |
| 2024-04-19 09:00 | 36.2 | 23.2 | 4.0 | 665.0 | 18.0 | - |
| 2024-04-19 08:00 | 24.6 | 31.2 | 3.9 | 619.5 | 26.7 | 15.2 |
| 2024-04-19 07:00 | 17.0 | 36.2 | 3.5 | 599.1 | 19.3 | 14.0 |
| 2024-04-19 06:00 | 22.4 | 29.1 | 3.7 | 666.1 | 18.0 | 13.0 |
| 2024-04-19 05:00 | 19.2 | 31.0 | 3.7 | 613.0 | 19.9 | 9.1 |
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.