Tuen Mun
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2022-01-23 00:00 | 21.1 | 56.9 | 1.3 | 516.6 | 7.0 | 6.0 |
| 2022-01-22 23:00 | 20.2 | 58.0 | 1.4 | 512.7 | 9.9 | 8.0 |
| 2022-01-22 22:00 | 32.5 | 46.0 | 1.6 | 535.9 | 13.9 | 9.0 |
| 2022-01-22 21:00 | 52.0 | 28.0 | 2.2 | 608.0 | 17.0 | 8.0 |
| 2022-01-22 20:00 | 70.1 | 11.8 | 2.9 | 635.5 | 14.1 | 7.0 |
| 2022-01-22 19:00 | 81.9 | 2.1 | 4.0 | 663.7 | 19.8 | 9.0 |
| 2022-01-22 18:00 | 77.9 | 6.0 | 4.4 | 652.3 | 24.8 | 12.0 |
| 2022-01-22 17:00 | 73.3 | 9.5 | 4.0 | 622.1 | 15.2 | 14.0 |
| 2022-01-22 16:00 | 72.8 | 8.8 | 3.6 | 637.4 | 14.0 | 10.1 |
| 2022-01-22 15:00 | 65.9 | 12.3 | 3.2 | 647.6 | 11.1 | - |
| 2022-01-22 14:00 | 62.2 | 14.1 | 3.1 | 680.2 | 10.0 | 8.1 |
| 2022-01-22 13:00 | 62.0 | 10.9 | 3.1 | 660.1 | 12.9 | 8.0 |
| 2022-01-22 12:00 | 68.2 | 5.6 | 4.4 | 734.6 | 14.9 | 8.0 |
| 2022-01-22 11:00 | 65.6 | 5.4 | 3.5 | 677.2 | 12.1 | 8.0 |
| 2022-01-22 10:00 | 62.2 | 5.5 | 3.2 | 700.0 | 21.7 | 19.8 |
| 2022-01-22 09:00 | 58.4 | 7.5 | 3.0 | 669.8 | 21.0 | 18.0 |
| 2022-01-22 08:00 | 62.1 | 6.7 | 3.0 | 645.0 | 18.1 | 14.1 |
| 2022-01-22 07:00 | 41.3 | 28.1 | 1.8 | 665.5 | 17.0 | 16.0 |
| 2022-01-22 06:00 | 20.8 | 49.8 | 1.3 | 591.3 | 18.9 | 17.0 |
| 2022-01-22 05:00 | 15.7 | 58.0 | 1.2 | 579.1 | 23.8 | 17.0 |
| 2022-01-22 04:00 | 17.2 | 58.3 | 1.2 | 567.7 | 18.2 | - |
| 2022-01-22 03:00 | 16.1 | 64.7 | 1.4 | 563.2 | 17.0 | - |
| 2022-01-22 02:00 | 24.8 | 54.3 | 1.2 | 591.3 | 21.8 | 19.0 |
| 2022-01-22 01:00 | 30.8 | 49.7 | 1.4 | 603.9 | 17.2 | - |
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.
