Yuen Long
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2024-04-25 10:00 | 43.9 | 24.3 | 1.6 | 634.0 | 14.9 | 10.9 |
| 2024-04-25 09:00 | 60.3 | 20.8 | 1.8 | 713.4 | 12.0 | 7.1 |
| 2024-04-25 08:00 | 62.2 | 27.8 | 1.6 | 734.5 | 11.6 | 6.8 |
| 2024-04-25 07:00 | 29.7 | 53.4 | 1.3 | 696.3 | 7.6 | 4.5 |
| 2024-04-25 06:00 | 17.3 | 74.2 | 1.1 | 638.0 | 8.2 | 5.1 |
| 2024-04-25 05:00 | 9.6 | 82.7 | 1.2 | 612.9 | 12.1 | 7.5 |
| 2024-04-25 04:00 | 6.3 | 82.2 | 1.2 | 595.2 | 12.2 | 8.5 |
| 2024-04-25 03:00 | 8.6 | 81.9 | 1.1 | 578.9 | 13.6 | 9.5 |
| 2024-04-25 02:00 | 10.9 | 79.5 | 0.7 | 638.0 | 18.9 | 12.6 |
| 2024-04-25 01:00 | 16.2 | 63.7 | 1.1 | 643.9 | 18.1 | 12.8 |
| 2024-04-25 00:00 | 23.2 | 60.8 | 1.3 | 686.5 | 26.2 | 19.5 |
| 2024-04-24 23:00 | 32.1 | 54.2 | 1.6 | 735.4 | 30.7 | 22.9 |
| 2024-04-24 22:00 | 38.0 | 48.8 | 1.7 | 775.5 | 31.5 | 24.2 |
| 2024-04-24 21:00 | 54.4 | 37.0 | 1.9 | 789.4 | 32.2 | 24.3 |
| 2024-04-24 20:00 | 71.1 | 25.9 | 3.5 | 828.8 | 34.0 | 24.6 |
| 2024-04-24 19:00 | 87.8 | 8.1 | 3.7 | 840.5 | 26.4 | 18.0 |
| 2024-04-24 18:00 | 68.1 | 20.8 | 2.6 | 763.2 | 24.1 | 16.6 |
| 2024-04-24 17:00 | 58.8 | 37.2 | 2.7 | 730.5 | 21.0 | 15.8 |
| 2024-04-24 16:00 | 54.1 | 49.2 | 2.6 | 733.3 | 21.8 | 16.3 |
| 2024-04-24 15:00 | 65.7 | 41.6 | 2.6 | 749.7 | 35.9 | 27.9 |
| 2024-04-24 14:00 | 70.7 | 57.4 | 1.7 | 794.7 | 46.3 | 36.2 |
| 2024-04-24 13:00 | 57.3 | 74.0 | 1.5 | 855.6 | 45.1 | 34.5 |
| 2024-04-24 12:00 | 54.8 | 59.8 | 1.6 | 824.3 | 40.2 | 30.2 |
| 2024-04-24 11:00 | 49.4 | 52.6 | 1.5 | 776.4 | 31.1 | 22.1 |
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.
