Yuen Long
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2024-04-17 03:00 | 7.5 | 42.5 | 0.8 | 414.9 | 17.8 | 15.5 |
| 2024-04-17 02:00 | 14.1 | 37.3 | 1.2 | 482.6 | 16.0 | 13.6 |
| 2024-04-17 01:00 | 25.0 | 28.8 | 1.1 | 468.1 | 17.5 | 14.7 |
| 2024-04-17 00:00 | 24.7 | 29.5 | 1.4 | 477.5 | 14.6 | 11.7 |
| 2024-04-16 23:00 | 23.5 | 34.8 | 1.1 | 490.3 | 13.3 | 10.6 |
| 2024-04-16 22:00 | 22.9 | 37.3 | 0.7 | 515.3 | 14.4 | 11.8 |
| 2024-04-16 21:00 | 17.9 | 39.9 | 1.1 | 528.5 | 17.5 | 13.9 |
| 2024-04-16 20:00 | 28.4 | 32.8 | 1.8 | 528.1 | 19.2 | 14.4 |
| 2024-04-16 19:00 | 30.3 | 33.1 | 1.7 | 534.4 | 19.2 | 11.5 |
| 2024-04-16 18:00 | 34.5 | 46.9 | 2.0 | 508.4 | 25.4 | 11.7 |
| 2024-04-16 17:00 | 42.0 | 56.6 | 3.2 | 506.3 | 23.8 | 11.5 |
| 2024-04-16 16:00 | 42.5 | 51.0 | 4.6 | 516.0 | 20.7 | 9.0 |
| 2024-04-16 15:00 | 36.4 | 47.8 | 3.8 | 470.7 | 25.5 | 8.7 |
| 2024-04-16 14:00 | 19.3 | 60.6 | 2.1 | 449.1 | 24.9 | 12.4 |
| 2024-04-16 13:00 | 18.5 | 55.1 | 1.9 | 429.5 | 15.2 | 4.9 |
| 2024-04-16 12:00 | 12.5 | 54.7 | 1.1 | 415.1 | 19.9 | 7.5 |
| 2024-04-16 11:00 | 24.0 | 47.7 | 1.5 | 452.2 | 19.8 | 10.4 |
| 2024-04-16 10:00 | 25.1 | 37.8 | 1.6 | 462.2 | 18.2 | 13.4 |
| 2024-04-16 09:00 | 26.4 | 28.7 | 1.9 | 525.5 | 21.8 | 17.5 |
| 2024-04-16 08:00 | 28.2 | 21.4 | 2.2 | 569.3 | 27.2 | 24.0 |
| 2024-04-16 07:00 | 33.2 | 14.5 | 2.1 | 570.0 | 30.4 | 27.3 |
| 2024-04-16 06:00 | 20.1 | 22.7 | 1.3 | 506.7 | 33.0 | 30.2 |
| 2024-04-16 05:00 | 17.5 | 26.5 | 1.5 | 471.5 | 34.5 | 31.7 |
| 2024-04-16 04:00 | 18.5 | 28.9 | 1.8 | 499.9 | 44.9 | 39.9 |
Remarks:
(1) Time shown is in Hong Kong time.
(2) NO2 - nitrogen dioxide, O3 - ozone,
SO2 - sulphur dioxide, CO - carbon monoxide,
PM10 - respirable suspended particulates,
PM2.5 - fine suspended particulates
(3) Concentration shown is in µg/m3.
(4) The pollutant concentration is based on real time data taken directly from EPD's Air Quality Monitoring Network.