Yuen Long
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2024-05-13 06:00 | 49.2 | 10.8 | 3.5 | 537.0 | 48.6 | 36.7 |
| 2024-05-13 05:00 | 47.2 | 14.4 | 3.3 | 547.2 | 48.0 | 37.3 |
| 2024-05-13 04:00 | 46.4 | 18.3 | 3.4 | 557.2 | 50.6 | 39.0 |
| 2024-05-13 03:00 | 54.1 | 16.7 | 3.2 | 535.0 | 46.1 | 35.2 |
| 2024-05-13 02:00 | 66.0 | 14.2 | 3.1 | 517.6 | 35.7 | 26.4 |
| 2024-05-13 01:00 | 79.1 | 9.4 | 3.3 | 537.0 | 32.8 | 24.9 |
| 2024-05-13 00:00 | 89.9 | 6.6 | 4.2 | 507.4 | 30.6 | 23.1 |
| 2024-05-12 23:00 | 98.2 | 5.9 | 5.0 | 513.0 | 28.9 | 23.5 |
| 2024-05-12 22:00 | 71.5 | 27.3 | 2.6 | 515.1 | 27.0 | 22.7 |
| 2024-05-12 21:00 | 41.7 | 51.1 | 1.7 | 485.8 | 16.9 | 13.7 |
| 2024-05-12 20:00 | 34.4 | 74.0 | 1.6 | 460.7 | 13.4 | 11.6 |
| 2024-05-12 19:00 | 29.3 | 87.1 | 1.6 | 386.5 | 18.5 | 15.1 |
| 2024-05-12 18:00 | 35.8 | 76.0 | 1.6 | 446.2 | 24.8 | 19.1 |
| 2024-05-12 17:00 | 36.1 | 91.4 | 2.0 | 390.4 | 33.1 | 24.0 |
| 2024-05-12 16:00 | 26.6 | 114.7 | 2.2 | 390.4 | 31.3 | 19.6 |
| 2024-05-12 15:00 | 29.3 | 107.8 | 2.6 | 352.3 | 30.9 | 18.5 |
| 2024-05-12 14:00 | 21.2 | 97.6 | 2.1 | 341.6 | 24.6 | 15.3 |
| 2024-05-12 13:00 | 17.7 | 84.9 | 2.7 | 338.8 | 22.7 | 14.8 |
| 2024-05-12 12:00 | 20.1 | 74.3 | 2.3 | 379.2 | 25.6 | 16.3 |
| 2024-05-12 11:00 | 20.0 | 67.8 | 2.2 | 386.1 | 25.0 | 16.0 |
| 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 |
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.