Past 24 Hours Pollutant Concentration Summary
Yuen Long
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2022-05-27 06:00 | 28.3 | 20.0 | 2.6 | 631.2 | 16.1 | 12.8 |
| 2022-05-27 05:00 | 29.4 | 17.7 | 2.7 | 646.2 | 15.6 | 12.2 |
| 2022-05-27 04:00 | 31.4 | 17.3 | 2.7 | 635.2 | 14.5 | 11.4 |
| 2022-05-27 03:00 | 33.9 | 19.9 | 2.7 | 616.5 | 13.0 | 11.1 |
| 2022-05-27 02:00 | 35.0 | 23.2 | 3.6 | 627.4 | 12.4 | 10.2 |
| 2022-05-27 01:00 | - | - | - | - | 11.4 | 8.8 |
| 2022-05-27 00:00 | 51.3 | 18.9 | 3.3 | 642.9 | 10.5 | 8.6 |
| 2022-05-26 23:00 | 53.1 | 22.4 | 4.3 | 693.4 | 13.3 | 10.6 |
| 2022-05-26 22:00 | 63.4 | 16.3 | 3.1 | 681.9 | 11.2 | 8.6 |
| 2022-05-26 21:00 | 55.8 | 24.3 | 2.8 | 682.8 | 11.5 | 8.4 |
| 2022-05-26 20:00 | 40.8 | 41.9 | 2.7 | 696.1 | 12.5 | 9.7 |
| 2022-05-26 19:00 | 49.7 | 38.4 | 2.9 | 725.5 | 12.2 | 9.4 |
| 2022-05-26 18:00 | 35.1 | 42.9 | 2.8 | 682.7 | 12.0 | 9.5 |
| 2022-05-26 17:00 | 34.0 | 38.1 | 3.2 | 676.5 | 12.0 | 9.4 |
| 2022-05-26 16:00 | 32.5 | 43.7 | 2.9 | 663.3 | 8.9 | 7.0 |
| 2022-05-26 15:00 | 39.2 | 40.7 | 2.9 | 710.7 | 9.5 | 7.2 |
| 2022-05-26 14:00 | 46.4 | 35.0 | 3.4 | 692.8 | 8.7 | 6.8 |
| 2022-05-26 13:00 | 34.0 | 37.7 | 3.5 | 636.3 | 9.0 | 7.1 |
| 2022-05-26 12:00 | 32.7 | 35.9 | 3.1 | 644.8 | 10.8 | 8.1 |
| 2022-05-26 11:00 | 41.0 | 26.3 | 3.3 | 653.2 | 15.7 | 12.1 |
| 2022-05-26 10:00 | 47.4 | 14.4 | 3.0 | 715.8 | 15.6 | 11.3 |
| 2022-05-26 09:00 | 37.2 | 13.3 | 2.7 | 744.4 | 14.2 | 10.0 |
| 2022-05-26 08:00 | 33.9 | 14.6 | 2.6 | 715.8 | 11.6 | 7.8 |
| 2022-05-26 07:00 | 37.7 | 10.3 | 2.7 | 809.3 | 14.0 | 11.1 |
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.