Tuen Mun
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2024-05-04 14:00 | 46.6 | 49.3 | 3.4 | 758.2 | 11.1 | 5.1 |
| 2024-05-04 13:00 | 50.3 | 45.0 | 3.4 | 839.1 | 7.1 | - |
| 2024-05-04 12:00 | 43.3 | 53.3 | 3.4 | 726.4 | 8.9 | - |
| 2024-05-04 11:00 | 63.7 | 30.0 | 3.7 | 821.2 | 7.1 | - |
| 2024-05-04 10:00 | 64.2 | 29.1 | 3.4 | 812.8 | 8.9 | 7.0 |
| 2024-05-04 09:00 | 51.0 | 41.2 | 3.4 | 774.4 | 8.0 | 6.0 |
| 2024-05-04 08:00 | 35.9 | 65.1 | 3.2 | 741.3 | 7.0 | 7.0 |
| 2024-05-04 07:00 | 22.3 | 84.9 | 3.2 | 709.3 | 6.0 | - |
| 2024-05-04 06:00 | 12.4 | 98.1 | 3.2 | 695.8 | 15.7 | 11.9 |
| 2024-05-04 05:00 | 7.6 | 111.7 | 3.3 | 684.8 | 17.0 | 13.0 |
| 2024-05-04 04:00 | 6.4 | 114.5 | 3.2 | 650.3 | 34.4 | 12.0 |
| 2024-05-04 03:00 | 10.6 | 112.0 | 3.3 | 656.7 | 30.2 | 17.8 |
| 2024-05-04 02:00 | 8.5 | 113.9 | 3.2 | 664.0 | 28.1 | 14.1 |
| 2024-05-04 01:00 | 9.6 | 111.0 | 3.2 | 665.3 | 24.1 | 17.9 |
| 2024-05-04 00:00 | 11.8 | 109.6 | 3.1 | 658.8 | 38.5 | 18.0 |
| 2024-05-03 23:00 | 17.1 | 105.1 | 3.3 | 675.8 | 37.1 | 17.0 |
| 2024-05-03 22:00 | 16.6 | 104.8 | 3.1 | 679.4 | 31.2 | 17.0 |
| 2024-05-03 21:00 | 15.9 | 104.4 | 3.1 | 670.7 | 39.7 | 17.0 |
| 2024-05-03 20:00 | 31.6 | 85.5 | 3.2 | 698.7 | 38.1 | 18.9 |
| 2024-05-03 19:00 | 39.1 | 82.8 | 3.4 | 703.2 | 34.1 | 16.1 |
| 2024-05-03 18:00 | 40.5 | 84.6 | 3.5 | 693.3 | 32.1 | 16.0 |
| 2024-05-03 17:00 | 35.5 | 96.4 | 3.5 | 686.6 | 29.1 | 18.9 |
| 2024-05-03 16:00 | 39.1 | 91.4 | 3.5 | 694.1 | 37.7 | 20.0 |
| 2024-05-03 15:00 | 31.3 | 97.8 | 3.4 | 676.4 | 33.2 | 21.0 |
Remarks:
(1) Time shown is in Hong Kong time.
(2) Concentration shown is in microgram per cubic metre (µg/m3).
(3) Abbreviation:
NO2 - nitrogen dioxide, O3 - ozone,
SO2 - sulphur dioxide, CO - carbon monoxide,
PM10 - respirable suspended particulates,
PM2.5 - fine suspended particulates
(4) The pollutant concentration is based on real time data taken directly from EPD's Air Quality Monitoring Network.