Yuen Long
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2024-05-06 00:00 | 50.0 | 25.9 | 1.8 | 766.1 | 16.9 | 11.2 |
| 2024-05-05 23:00 | 81.9 | 16.3 | 2.5 | 804.1 | 17.3 | 11.7 |
| 2024-05-05 22:00 | 86.9 | 15.8 | 3.5 | 773.4 | 14.0 | 8.9 |
| 2024-05-05 21:00 | 57.1 | 42.7 | 2.1 | 730.4 | 15.0 | 10.5 |
| 2024-05-05 20:00 | 53.1 | 64.2 | 2.1 | 721.3 | 11.5 | 7.9 |
| 2024-05-05 19:00 | 43.1 | 81.2 | 2.2 | 610.2 | 14.2 | 10.1 |
| 2024-05-05 18:00 | 41.9 | 100.3 | 2.5 | 666.8 | 26.7 | 19.0 |
| 2024-05-05 17:00 | 38.8 | 127.3 | 2.6 | 692.6 | 25.4 | 18.5 |
| 2024-05-05 16:00 | 31.6 | 119.8 | 2.8 | 642.1 | 26.5 | 19.5 |
| 2024-05-05 15:00 | 46.2 | 106.6 | 3.7 | 718.1 | 20.8 | 15.4 |
| 2024-05-05 14:00 | 30.2 | 99.2 | 2.5 | 605.7 | 14.7 | 11.2 |
| 2024-05-05 13:00 | 41.2 | 80.8 | 2.2 | 617.1 | 8.7 | 6.9 |
| 2024-05-05 12:00 | 21.3 | 86.8 | 1.7 | 601.1 | 7.8 | 6.4 |
| 2024-05-05 11:00 | 22.5 | 76.4 | 1.5 | 578.8 | 6.7 | 5.7 |
| 2024-05-05 10:00 | 19.6 | 59.4 | 1.3 | 592.8 | 9.9 | 8.7 |
| 2024-05-05 09:00 | 33.5 | 37.4 | 1.7 | 666.3 | 11.2 | 9.6 |
| 2024-05-05 08:00 | 25.9 | 38.6 | 1.6 | 593.6 | 16.3 | 13.8 |
| 2024-05-05 07:00 | 36.3 | 29.0 | 1.5 | 661.7 | 14.2 | 11.5 |
| 2024-05-05 06:00 | 25.0 | 38.4 | 1.2 | 588.3 | 17.3 | 12.5 |
| 2024-05-05 05:00 | 36.8 | 13.2 | 1.6 | 756.8 | 19.3 | 14.5 |
| 2024-05-05 04:00 | 40.7 | 13.4 | 1.6 | 710.0 | 15.3 | 11.4 |
| 2024-05-05 03:00 | 40.9 | 14.3 | 1.4 | 727.2 | 14.2 | 10.5 |
| 2024-05-05 02:00 | 40.1 | 24.3 | 1.3 | 698.7 | 16.1 | 12.9 |
| 2024-05-05 01:00 | 59.8 | 13.2 | 1.2 | 792.0 | 13.5 | 11.7 |
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.