Yuen Long
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2022-10-06 23:00 | 20.7 | 85.7 | 3.0 | 602.8 | 23.2 | 15.5 |
| 2022-10-06 22:00 | 22.5 | 86.1 | 2.9 | 626.7 | 23.0 | 16.0 |
| 2022-10-06 21:00 | 25.2 | 84.5 | 3.4 | 663.8 | 21.5 | 14.8 |
| 2022-10-06 20:00 | 38.4 | 73.2 | 3.7 | 731.5 | 26.0 | 18.3 |
| 2022-10-06 19:00 | 50.4 | 61.0 | 3.9 | 720.7 | 28.5 | 17.4 |
| 2022-10-06 18:00 | 53.6 | 66.8 | 3.5 | 660.6 | 26.6 | 16.6 |
| 2022-10-06 17:00 | 36.4 | 76.3 | 3.2 | 615.7 | 24.3 | 18.8 |
| 2022-10-06 16:00 | 27.3 | 85.7 | 3.1 | 610.9 | 27.3 | 21.8 |
| 2022-10-06 15:00 | 33.0 | 77.9 | 3.4 | 628.7 | 26.5 | 20.6 |
| 2022-10-06 14:00 | 31.4 | 83.2 | 3.2 | 594.6 | 20.7 | 14.4 |
| 2022-10-06 13:00 | 24.1 | 88.8 | 3.1 | 587.6 | - | - |
| 2022-10-06 12:00 | 16.6 | 91.2 | 3.2 | 606.9 | - | - |
| 2022-10-06 11:00 | 17.5 | 81.8 | 3.1 | 603.7 | 12.9 | 6.4 |
| 2022-10-06 10:00 | 21.5 | 67.9 | 3.1 | 659.6 | 15.4 | 8.4 |
| 2022-10-06 09:00 | 21.7 | 61.4 | 3.2 | 683.8 | 16.5 | 9.2 |
| 2022-10-06 08:00 | 29.9 | 50.5 | 3.0 | 657.6 | 19.0 | 12.2 |
| 2022-10-06 07:00 | 23.6 | 58.2 | 2.9 | 632.7 | 18.6 | 11.1 |
| 2022-10-06 06:00 | 15.8 | 66.5 | 2.9 | 618.2 | 17.5 | 8.2 |
| 2022-10-06 05:00 | 10.2 | 76.4 | 2.8 | 620.3 | 17.1 | 6.9 |
| 2022-10-06 04:00 | 7.0 | 83.6 | 2.9 | 589.3 | 16.8 | 7.7 |
| 2022-10-06 03:00 | 5.8 | 87.9 | 3.0 | 547.3 | 17.2 | 7.4 |
| 2022-10-06 02:00 | 9.2 | 86.5 | 4.6 | 582.6 | 14.8 | 5.9 |
| 2022-10-06 01:00 | - | - | - | - | 12.4 | 4.0 |
| 2022-10-06 00:00 | 14.8 | 86.5 | 2.6 | 570.7 | 11.0 | 3.3 |
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.
