Past 24 Hours Pollutant Concentration Summary
Tuen Mun
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2022-12-02 09:00 | 30.0 | 12.7 | 2.8 | 629.3 | 17.0 | 5.2 |
| 2022-12-02 08:00 | 27.3 | 15.0 | 2.3 | 559.4 | 11.3 | 3.1 |
| 2022-12-02 07:00 | 18.1 | 21.1 | 1.4 | 517.2 | 11.0 | 4.0 |
| 2022-12-02 06:00 | 14.4 | 23.3 | 1.0 | 514.4 | 10.1 | 6.9 |
| 2022-12-02 05:00 | 12.3 | 25.6 | 1.2 | 514.3 | 10.0 | 8.9 |
| 2022-12-02 04:00 | 13.4 | 23.1 | 1.2 | 510.3 | 18.6 | 12.8 |
| 2022-12-02 03:00 | 19.2 | 19.1 | 1.4 | 561.7 | 14.3 | 9.2 |
| 2022-12-02 02:00 | 21.4 | 17.2 | 1.4 | 572.2 | 21.6 | 8.1 |
| 2022-12-02 01:00 | 24.4 | 16.4 | 1.7 | 568.1 | 16.3 | 7.1 |
| 2022-12-02 00:00 | 25.5 | 16.0 | 1.6 | 572.2 | 26.5 | 9.9 |
| 2022-12-01 23:00 | 29.7 | 13.0 | 1.5 | 597.1 | 29.9 | 10.0 |
| 2022-12-01 22:00 | 33.4 | 9.6 | 1.5 | 628.9 | 36.7 | 13.8 |
| 2022-12-01 21:00 | 36.6 | 8.8 | 1.5 | 658.7 | 44.6 | 15.0 |
| 2022-12-01 20:00 | 38.9 | 8.5 | 2.0 | 689.7 | 43.1 | 14.1 |
| 2022-12-01 19:00 | 39.6 | 8.7 | 1.9 | 651.5 | 74.4 | 33.0 |
| 2022-12-01 18:00 | 40.0 | 9.5 | 2.8 | 660.2 | 46.6 | 13.1 |
| 2022-12-01 17:00 | 36.9 | 13.2 | 2.3 | 641.1 | 40.3 | 12.0 |
| 2022-12-01 16:00 | 34.3 | 17.7 | 2.2 | 628.0 | 42.9 | 11.1 |
| 2022-12-01 15:00 | 33.0 | 21.2 | 2.3 | 632.2 | 38.3 | 10.1 |
| 2022-12-01 14:00 | 31.1 | 22.3 | 2.3 | 624.7 | 26.6 | 10.0 |
| 2022-12-01 13:00 | 26.6 | 23.6 | 2.1 | 614.0 | 32.7 | 8.1 |
| 2022-12-01 12:00 | 23.7 | 22.8 | 2.1 | 609.0 | 25.4 | 4.2 |
| 2022-12-01 11:00 | 24.0 | 18.3 | 2.1 | 605.3 | 27.9 | 3.0 |
| 2022-12-01 10:00 | 23.7 | 17.1 | 2.0 | 592.8 | 20.3 | 5.9 |
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.