Past 24 Hours Pollutant Concentration Summary
Tuen Mun
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2024-04-30 11:00 | 32.7 | - | 4.1 | 646.2 | 32.0 | 16.9 |
| 2024-04-30 10:00 | 40.0 | 14.0 | 4.3 | 669.8 | 25.4 | 12.3 |
| 2024-04-30 09:00 | 32.6 | 17.6 | 3.9 | 647.7 | 22.2 | 12.0 |
| 2024-04-30 08:00 | 33.5 | 13.9 | 4.1 | 658.1 | 23.0 | 17.7 |
| 2024-04-30 07:00 | 27.1 | 18.5 | 3.7 | 625.3 | 21.1 | 10.4 |
| 2024-04-30 06:00 | 14.4 | 30.1 | 3.7 | 613.6 | 20.1 | 10.0 |
| 2024-04-30 05:00 | 9.8 | 35.1 | 3.5 | 587.9 | 17.2 | 7.2 |
| 2024-04-30 04:00 | 9.5 | 32.8 | 3.6 | 575.7 | 19.9 | 16.5 |
| 2024-04-30 03:00 | 10.9 | 31.1 | 3.7 | 583.5 | 20.0 | 10.4 |
| 2024-04-30 02:00 | 12.6 | 30.7 | 3.6 | 594.2 | 22.9 | 14.8 |
| 2024-04-30 01:00 | 12.8 | 32.3 | 3.5 | 586.1 | 24.9 | 9.3 |
| 2024-04-30 00:00 | 18.8 | 28.3 | 3.7 | 601.9 | 26.0 | 9.0 |
| 2024-04-29 23:00 | 21.3 | 27.0 | 3.5 | 615.0 | 19.4 | 6.2 |
| 2024-04-29 22:00 | 21.5 | 26.1 | 3.5 | 618.4 | 20.9 | 7.9 |
| 2024-04-29 21:00 | 23.9 | 26.4 | 3.5 | 626.3 | 17.2 | 9.9 |
| 2024-04-29 20:00 | 32.7 | 21.4 | 3.8 | 649.1 | 17.0 | 11.9 |
| 2024-04-29 19:00 | 38.5 | 20.8 | 3.9 | 668.7 | 22.7 | 13.0 |
| 2024-04-29 18:00 | 36.9 | 26.0 | 3.8 | 653.6 | 21.1 | 15.9 |
| 2024-04-29 17:00 | 38.7 | 26.2 | 4.1 | 647.9 | 22.0 | 17.9 |
| 2024-04-29 16:00 | 27.4 | 39.6 | 3.9 | 631.7 | 25.8 | 11.4 |
| 2024-04-29 15:00 | 24.7 | 40.4 | 4.1 | 632.4 | 25.0 | 14.9 |
| 2024-04-29 14:00 | 28.6 | 34.5 | 4.3 | 661.0 | 26.0 | 11.1 |
| 2024-04-29 13:00 | 28.1 | 32.5 | 4.3 | 649.2 | 24.1 | 12.0 |
| 2024-04-29 12:00 | 29.6 | 30.7 | 4.0 | 651.6 | 31.7 | 27.5 |
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.