Tuen Mun
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2023-03-27 22:00 | 28.0 | 18.9 | 1.8 | 711.4 | 12.0 | 7.0 |
| 2023-03-27 21:00 | 25.9 | 22.9 | 1.8 | 726.6 | 8.0 | 6.0 |
| 2023-03-27 20:00 | 30.7 | 19.3 | 2.0 | 733.0 | 13.0 | 7.0 |
| 2023-03-27 19:00 | 34.9 | 15.9 | 2.0 | 741.8 | 17.0 | 6.0 |
| 2023-03-27 18:00 | 35.9 | 18.1 | 2.2 | 710.4 | 26.0 | 16.0 |
| 2023-03-27 17:00 | 54.4 | 20.0 | 2.5 | 693.2 | 29.0 | 17.0 |
| 2023-03-27 16:00 | 56.8 | 28.2 | 2.4 | 635.5 | 26.0 | 11.0 |
| 2023-03-27 15:00 | 43.8 | 47.8 | 2.3 | 587.0 | 19.0 | 13.0 |
| 2023-03-27 14:00 | 44.6 | 48.5 | 2.5 | 592.4 | 27.0 | 17.0 |
| 2023-03-27 13:00 | 42.1 | 56.3 | 2.3 | 571.0 | 31.0 | 3.0 |
| 2023-03-27 12:00 | 42.0 | 51.7 | 2.3 | 554.1 | - | - |
| 2023-03-27 11:00 | 34.2 | 60.0 | 2.0 | 553.8 | - | - |
| 2023-03-27 10:00 | 29.0 | 66.2 | 2.0 | 528.0 | 31.0 | 10.0 |
| 2023-03-27 09:00 | 31.4 | 61.8 | 1.9 | 553.8 | 32.0 | 13.9 |
| 2023-03-27 08:00 | 24.7 | 71.7 | 1.9 | 544.6 | 28.1 | 13.0 |
| 2023-03-27 07:00 | 15.1 | 79.8 | 1.9 | 510.1 | 15.4 | 10.1 |
| 2023-03-27 06:00 | 16.5 | 50.8 | 1.9 | 680.8 | 10.2 | 9.0 |
| 2023-03-27 05:00 | 17.6 | 37.1 | 1.9 | 704.6 | 8.1 | 7.1 |
| 2023-03-27 04:00 | 19.1 | 16.7 | 1.9 | 712.3 | 9.9 | 8.9 |
| 2023-03-27 03:00 | 21.1 | 14.1 | 1.9 | 731.4 | 17.9 | 8.0 |
| 2023-03-27 02:00 | 24.3 | 12.2 | 2.1 | 764.0 | 17.0 | 14.8 |
| 2023-03-27 01:00 | 23.4 | 15.5 | 2.1 | 740.4 | 23.9 | 11.1 |
| 2023-03-27 00:00 | 28.2 | 14.6 | 2.1 | 767.3 | 14.2 | 11.0 |
| 2023-03-26 23:00 | 28.7 | 13.8 | 2.2 | 794.3 | 17.9 | - |
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.
