Past 24 Hours Pollutant Concentration Summary
Tuen Mun
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2024-04-26 13:00 | 85.2 | 9.9 | 4.7 | 948.8 | 15.1 | 11.0 |
| 2024-04-26 12:00 | 83.1 | 15.9 | 4.0 | 875.4 | 18.9 | 14.9 |
| 2024-04-26 11:00 | 77.1 | 21.3 | 3.9 | 867.3 | 11.1 | 0.5 |
| 2024-04-26 10:00 | 41.4 | 55.9 | 3.6 | 724.4 | 20.8 | 16.4 |
| 2024-04-26 09:00 | 37.2 | 12.2 | 4.0 | 668.3 | 15.1 | 9.3 |
| 2024-04-26 08:00 | 34.9 | 8.6 | 3.9 | 703.9 | 20.9 | 11.9 |
| 2024-04-26 07:00 | 32.9 | 10.1 | 3.9 | 670.6 | 17.1 | 9.1 |
| 2024-04-26 06:00 | 24.6 | 19.8 | 3.6 | 660.5 | 18.0 | 17.7 |
| 2024-04-26 05:00 | 13.8 | 32.1 | 3.6 | 618.4 | 21.9 | 10.3 |
| 2024-04-26 04:00 | 15.3 | 39.9 | 3.9 | 643.0 | 24.0 | 11.0 |
| 2024-04-26 03:00 | 35.5 | 26.4 | 4.6 | 686.2 | 25.0 | 5.2 |
| 2024-04-26 02:00 | 50.5 | 8.6 | 4.6 | 689.4 | 23.0 | 7.9 |
| 2024-04-26 01:00 | 48.8 | 2.9 | 5.3 | 648.6 | 22.0 | 10.9 |
| 2024-04-26 00:00 | 44.3 | 3.3 | 5.0 | 621.3 | 22.0 | 12.0 |
| 2024-04-25 23:00 | 39.6 | 6.3 | 4.3 | 631.3 | 20.0 | 11.0 |
| 2024-04-25 22:00 | 39.9 | 6.8 | 4.3 | 637.9 | 16.1 | 11.0 |
| 2024-04-25 21:00 | 41.4 | 7.9 | 4.2 | 647.3 | 17.0 | 12.9 |
| 2024-04-25 20:00 | 36.1 | 15.6 | 4.0 | 641.0 | 18.0 | 11.1 |
| 2024-04-25 19:00 | 42.3 | 13.7 | 4.4 | 649.2 | 21.9 | 7.1 |
| 2024-04-25 18:00 | 45.1 | 16.9 | 4.1 | 640.1 | 15.1 | 6.0 |
| 2024-04-25 17:00 | 43.9 | 22.4 | 4.3 | 616.7 | 15.0 | 8.9 |
| 2024-04-25 16:00 | 36.0 | 37.2 | 3.6 | 604.8 | 19.9 | 10.0 |
| 2024-04-25 15:00 | 34.5 | 53.8 | 4.1 | 610.3 | 24.9 | 11.0 |
| 2024-04-25 14:00 | 27.7 | 54.1 | 4.0 | 602.5 | 14.2 | 13.9 |
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.