Yuen Long
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2022-01-24 23:00 | 29.9 | 53.3 | 2.8 | 722.7 | 16.6 | 14.4 |
| 2022-01-24 22:00 | 33.0 | 54.3 | 2.8 | 774.5 | 15.5 | 13.3 |
| 2022-01-24 21:00 | 40.2 | 50.7 | 2.7 | 821.6 | 21.9 | 20.5 |
| 2022-01-24 20:00 | 50.1 | 44.5 | 3.0 | 857.9 | 26.5 | 22.9 |
| 2022-01-24 19:00 | 73.7 | 22.3 | 3.6 | 916.6 | 27.4 | 21.2 |
| 2022-01-24 18:00 | 90.0 | 12.8 | 5.0 | 947.0 | 29.7 | 24.1 |
| 2022-01-24 17:00 | 53.5 | 36.5 | 3.9 | 842.4 | 25.4 | 20.1 |
| 2022-01-24 16:00 | 59.6 | 35.9 | 4.2 | 859.0 | 23.1 | 18.4 |
| 2022-01-24 15:00 | 51.0 | 37.2 | 3.9 | 846.4 | 22.0 | 18.0 |
| 2022-01-24 14:00 | 54.8 | - | 5.1 | 812.3 | 25.0 | 19.9 |
| 2022-01-24 13:00 | 63.1 | - | 5.0 | 878.5 | 24.8 | 21.0 |
| 2022-01-24 12:00 | 54.2 | - | 5.3 | 834.5 | 31.6 | 27.8 |
| 2022-01-24 11:00 | 61.7 | 10.0 | 5.6 | 947.0 | 33.5 | 30.0 |
| 2022-01-24 10:00 | 70.8 | 2.9 | 6.6 | 1,077.6 | 26.7 | 23.1 |
| 2022-01-24 09:00 | 64.0 | 1.2 | 6.0 | 1,116.4 | 30.0 | 24.8 |
| 2022-01-24 08:00 | 62.7 | 0.8 | 7.1 | 1,228.5 | 30.4 | 25.5 |
| 2022-01-24 07:00 | 62.7 | 0.8 | 5.7 | 1,038.2 | 29.5 | 25.6 |
| 2022-01-24 06:00 | 65.0 | 0.8 | 5.3 | 928.4 | 27.6 | 23.4 |
| 2022-01-24 05:00 | 66.2 | 0.8 | 5.3 | 874.7 | 25.5 | 20.0 |
| 2022-01-24 04:00 | 64.7 | 0.8 | 5.4 | 912.5 | 24.7 | 17.4 |
| 2022-01-24 03:00 | 70.6 | 0.8 | 5.4 | 839.3 | 25.8 | 19.3 |
| 2022-01-24 02:00 | 66.3 | 0.8 | 5.4 | 880.4 | 30.9 | 22.9 |
| 2022-01-24 01:00 | 76.4 | 0.8 | 6.3 | 928.2 | 37.8 | 28.1 |
| 2022-01-24 00:00 | 81.2 | 0.8 | 6.0 | 918.2 | 33.1 | 24.9 |
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.
