Past 24 Hours Pollutant Concentration Summary
Yuen Long
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2024-04-27 03:00 | 15.0 | 35.5 | 1.3 | 492.3 | 16.8 | 8.2 |
| 2024-04-27 02:00 | 14.1 | 34.2 | 1.2 | 504.2 | 16.6 | 7.4 |
| 2024-04-27 01:00 | 19.6 | 26.4 | 1.3 | 570.1 | 18.2 | 8.8 |
| 2024-04-27 00:00 | 26.7 | 21.7 | 1.1 | 581.0 | 17.6 | 9.1 |
| 2024-04-26 23:00 | 16.8 | 36.5 | 1.1 | 532.2 | 17.7 | 9.2 |
| 2024-04-26 22:00 | 22.0 | 28.2 | 1.2 | 553.8 | 17.2 | 8.5 |
| 2024-04-26 21:00 | 29.2 | 17.6 | 1.6 | 613.9 | 15.2 | 7.3 |
| 2024-04-26 20:00 | 35.3 | 13.9 | 1.8 | 589.0 | 22.7 | 14.0 |
| 2024-04-26 19:00 | 34.1 | 14.6 | 1.5 | 600.2 | 17.5 | 10.1 |
| 2024-04-26 18:00 | 28.7 | 22.2 | 1.8 | 580.5 | 12.9 | 6.4 |
| 2024-04-26 17:00 | 23.9 | 28.7 | 1.6 | 501.1 | 14.0 | 7.0 |
| 2024-04-26 16:00 | 17.9 | 34.0 | 1.1 | 504.0 | 15.1 | 8.2 |
| 2024-04-26 15:00 | 30.2 | 27.6 | 1.4 | 549.4 | 16.8 | 11.1 |
| 2024-04-26 14:00 | 77.7 | 16.7 | 2.2 | 913.0 | 13.2 | 11.3 |
| 2024-04-26 13:00 | 75.0 | 24.3 | 1.5 | 786.8 | 6.2 | 5.8 |
| 2024-04-26 12:00 | 64.9 | 38.4 | 1.4 | 784.8 | 9.3 | 8.2 |
| 2024-04-26 11:00 | 82.6 | 25.5 | 1.8 | 869.6 | 4.1 | 2.5 |
| 2024-04-26 10:00 | 41.5 | 65.5 | 1.3 | 639.2 | 8.6 | 6.3 |
| 2024-04-26 09:00 | 25.7 | 37.1 | 1.3 | 553.1 | 19.8 | 16.4 |
| 2024-04-26 08:00 | 20.5 | 20.8 | 1.7 | 511.3 | 14.4 | 11.0 |
| 2024-04-26 07:00 | 18.5 | 25.1 | 1.5 | 534.0 | 10.5 | 7.4 |
| 2024-04-26 06:00 | 11.6 | 33.1 | 1.2 | 490.3 | 9.7 | 6.9 |
| 2024-04-26 05:00 | 10.2 | 38.1 | 1.1 | 511.4 | 12.2 | 7.8 |
| 2024-04-26 04:00 | 16.3 | 39.7 | 1.6 | 590.6 | 14.4 | 8.9 |
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.