Yuen Long
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2024-05-07 10:00 | 79.9 | 60.3 | 3.1 | 848.6 | 59.0 | 45.3 |
| 2024-05-07 09:00 | 75.6 | 41.2 | 3.9 | 830.4 | 57.8 | 44.4 |
| 2024-05-07 08:00 | 77.2 | 28.8 | 4.6 | 801.4 | 41.9 | 31.7 |
| 2024-05-07 07:00 | 73.7 | 18.6 | 4.6 | 814.1 | 28.5 | 22.2 |
| 2024-05-07 06:00 | 60.4 | 31.1 | 2.5 | 728.0 | 23.8 | 18.6 |
| 2024-05-07 05:00 | 32.5 | 56.1 | 1.9 | 684.4 | 20.9 | 15.7 |
| 2024-05-07 04:00 | 26.0 | 77.3 | 1.8 | 669.7 | 18.1 | 14.1 |
| 2024-05-07 03:00 | 24.2 | 82.9 | 1.7 | 712.5 | 13.8 | 11.0 |
| 2024-05-07 02:00 | 30.4 | 97.6 | 2.0 | 694.5 | 11.6 | 9.6 |
| 2024-05-07 01:00 | 35.3 | 105.0 | 2.3 | 704.6 | 10.8 | 9.2 |
| 2024-05-07 00:00 | 30.4 | 119.1 | 1.9 | 662.6 | 16.5 | 12.0 |
| 2024-05-06 23:00 | 31.9 | 67.6 | 1.9 | 621.9 | 16.0 | 11.8 |
| 2024-05-06 22:00 | 49.4 | 15.6 | 2.8 | 633.2 | 13.0 | 10.6 |
| 2024-05-06 21:00 | 41.7 | 21.4 | 2.4 | 562.3 | 13.0 | 10.6 |
| 2024-05-06 20:00 | 35.5 | 35.1 | 2.4 | 593.0 | 12.5 | 10.2 |
| 2024-05-06 19:00 | 41.8 | 46.2 | 2.4 | 567.7 | 15.3 | 11.1 |
| 2024-05-06 18:00 | 52.7 | 53.8 | 3.3 | 575.0 | 19.4 | 13.3 |
| 2024-05-06 17:00 | 46.3 | 61.4 | 2.7 | 558.5 | 17.7 | 12.5 |
| 2024-05-06 16:00 | 38.0 | 61.2 | 2.0 | 478.5 | 16.4 | 12.0 |
| 2024-05-06 15:00 | 35.6 | 52.7 | 2.4 | 502.9 | 16.9 | 11.9 |
| 2024-05-06 14:00 | 38.0 | 50.7 | 3.5 | 554.0 | 19.1 | 13.0 |
| 2024-05-06 13:00 | 36.8 | 63.7 | 3.3 | 576.3 | 24.2 | 16.9 |
| 2024-05-06 12:00 | 36.7 | 58.3 | 2.9 | 597.2 | 23.4 | 15.9 |
| 2024-05-06 11:00 | 34.2 | 53.5 | 2.1 | 619.8 | 17.8 | 12.1 |
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.