Past 24 Hours Pollutant Concentration Summary
Tuen Mun
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2024-04-29 09:00 | 51.7 | 10.5 | 5.5 | 711.4 | 22.2 | 10.1 |
| 2024-04-29 08:00 | 56.3 | 7.8 | 5.0 | 730.8 | 22.0 | 13.9 |
| 2024-04-29 07:00 | 46.9 | 14.6 | 4.3 | 672.3 | 20.1 | 10.1 |
| 2024-04-29 06:00 | 45.9 | 16.0 | 4.7 | 648.3 | 21.0 | 11.0 |
| 2024-04-29 05:00 | 35.1 | 25.0 | 4.1 | 632.2 | 22.0 | 14.9 |
| 2024-04-29 04:00 | 21.7 | 38.3 | 3.7 | 610.5 | 19.1 | 15.0 |
| 2024-04-29 03:00 | 21.4 | 44.0 | 3.6 | 615.7 | 18.0 | 15.0 |
| 2024-04-29 02:00 | 25.1 | 45.7 | 3.6 | 633.2 | 24.8 | 11.1 |
| 2024-04-29 01:00 | 29.4 | 45.6 | 3.7 | 641.4 | 23.1 | 8.1 |
| 2024-04-29 00:00 | 23.2 | 53.7 | 3.8 | 635.3 | 24.0 | 9.0 |
| 2024-04-28 23:00 | 30.5 | 46.1 | 3.6 | 654.2 | 16.3 | 10.9 |
| 2024-04-28 22:00 | 32.7 | 48.2 | 3.6 | 650.1 | 15.0 | 11.0 |
| 2024-04-28 21:00 | 23.8 | 65.9 | 3.4 | 651.8 | 16.0 | - |
| 2024-04-28 20:00 | 24.7 | 71.3 | 3.4 | 661.3 | 9.2 | - |
| 2024-04-28 19:00 | 16.2 | 87.8 | 3.2 | 653.7 | 17.7 | 11.0 |
| 2024-04-28 18:00 | 19.3 | 84.2 | 3.4 | 664.3 | 16.1 | 12.0 |
| 2024-04-28 17:00 | 16.6 | 87.1 | 3.2 | 673.7 | 11.2 | 7.2 |
| 2024-04-28 16:00 | 20.2 | 84.3 | 3.4 | 670.6 | 10.0 | 7.0 |
| 2024-04-28 15:00 | 23.6 | 88.3 | 3.7 | 677.4 | 6.1 | - |
| 2024-04-28 14:00 | 36.6 | 78.1 | 3.9 | 713.7 | 10.8 | 8.0 |
| 2024-04-28 13:00 | 18.1 | 93.6 | 3.5 | 688.5 | 24.5 | 9.0 |
| 2024-04-28 12:00 | 19.7 | 85.1 | 3.3 | 718.9 | 23.1 | 10.0 |
| 2024-04-28 11:00 | 28.5 | 80.1 | 3.6 | 685.8 | 14.3 | 8.1 |
| 2024-04-28 10:00 | 17.4 | 91.8 | 3.3 | 665.8 | 12.1 | 6.1 |
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.