Yuen Long
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2024-05-12 10:00 | 20.1 | 60.0 | 1.8 | 383.1 | 26.8 | 17.4 |
| 2024-05-12 09:00 | 28.0 | 39.3 | 1.8 | 448.3 | 27.0 | 18.0 |
| 2024-05-12 08:00 | 25.2 | 35.5 | 1.7 | 404.6 | 21.6 | 13.2 |
| 2024-05-12 07:00 | 23.3 | 43.5 | 1.6 | 421.2 | 24.6 | 15.2 |
| 2024-05-12 06:00 | 21.0 | 42.7 | 1.5 | 381.7 | 19.9 | 12.3 |
| 2024-05-12 05:00 | 15.6 | 48.1 | 1.9 | 353.0 | 19.2 | 11.7 |
| 2024-05-12 04:00 | 14.2 | 50.8 | 1.6 | 358.0 | 21.5 | 13.8 |
| 2024-05-12 03:00 | 13.7 | 63.6 | 1.6 | 365.4 | 20.5 | 13.3 |
| 2024-05-12 02:00 | 21.3 | 48.5 | 1.2 | 408.7 | 19.7 | 13.1 |
| 2024-05-12 01:00 | - | - | - | - | 20.0 | 13.2 |
| 2024-05-12 00:00 | 30.8 | 39.6 | 1.8 | 431.0 | 18.5 | 11.0 |
| 2024-05-11 23:00 | 20.0 | 61.3 | 1.8 | 370.5 | 20.4 | 11.7 |
| 2024-05-11 22:00 | 28.8 | 54.2 | 1.9 | 411.2 | 21.8 | 12.4 |
| 2024-05-11 21:00 | 55.9 | 43.1 | 4.0 | 418.4 | 25.1 | 14.8 |
| 2024-05-11 20:00 | 71.5 | 37.1 | 4.0 | 450.3 | 22.9 | 12.5 |
| 2024-05-11 19:00 | 45.5 | 54.8 | 2.8 | 362.2 | 21.1 | 9.6 |
| 2024-05-11 18:00 | 30.2 | 69.7 | 2.1 | 318.1 | 24.4 | 9.9 |
| 2024-05-11 17:00 | 25.6 | 69.0 | 2.0 | 276.6 | 20.0 | 7.9 |
| 2024-05-11 16:00 | 19.9 | 78.4 | 2.0 | 293.1 | 22.3 | 11.0 |
| 2024-05-11 15:00 | 30.2 | 83.3 | 2.1 | 297.5 | 20.3 | 10.2 |
| 2024-05-11 14:00 | 25.1 | 92.5 | 1.8 | 271.0 | 21.4 | 10.2 |
| 2024-05-11 13:00 | 30.9 | 95.8 | 2.4 | 336.0 | 20.4 | 10.7 |
| 2024-05-11 12:00 | 24.6 | 91.7 | 1.3 | 327.8 | 18.0 | 9.9 |
| 2024-05-11 11:00 | 19.7 | 90.2 | 1.7 | 315.5 | 18.2 | 9.0 |
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.
