Past 24 Hours Pollutant Concentration Summary
Tsuen Wan
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2024-05-05 03:00 | 28.8 | 50.7 | 0.8 | 376.5 | 9.4 | 5.4 |
| 2024-05-05 02:00 | 25.9 | 53.2 | 0.8 | 339.2 | 8.0 | 3.7 |
| 2024-05-05 01:00 | 32.0 | 53.0 | 0.8 | 355.3 | 10.4 | 6.2 |
| 2024-05-05 00:00 | 34.1 | 56.8 | 0.7 | 342.3 | 7.9 | 4.8 |
| 2024-05-04 23:00 | 37.2 | 63.7 | 0.8 | 352.3 | 10.9 | 9.1 |
| 2024-05-04 22:00 | 40.9 | 74.3 | 0.9 | 394.9 | 6.2 | 4.9 |
| 2024-05-04 21:00 | 72.7 | 54.8 | 1.0 | 510.3 | 3.7 | 2.9 |
| 2024-05-04 20:00 | 66.1 | 70.8 | 0.8 | 426.4 | 11.0 | 9.9 |
| 2024-05-04 19:00 | 66.4 | 69.6 | 1.0 | 433.5 | 8.0 | 6.6 |
| 2024-05-04 18:00 | 49.4 | 72.8 | 1.0 | 491.4 | 7.8 | 5.3 |
| 2024-05-04 17:00 | 54.7 | 59.3 | 0.8 | 465.1 | 5.3 | 2.2 |
| 2024-05-04 16:00 | 47.1 | 73.5 | 0.8 | 420.5 | 11.4 | 9.6 |
| 2024-05-04 15:00 | 40.3 | 79.0 | 0.9 | 513.3 | 10.8 | 9.7 |
| 2024-05-04 14:00 | 55.3 | 63.3 | 1.1 | 600.7 | 8.0 | 7.3 |
| 2024-05-04 13:00 | 47.9 | 75.2 | 0.8 | 671.4 | 4.7 | 4.5 |
| 2024-05-04 12:00 | 42.4 | 79.4 | 0.6 | 700.8 | 3.1 | 2.8 |
| 2024-05-04 11:00 | 40.1 | 78.5 | 1.0 | 694.5 | 3.0 | 2.0 |
| 2024-05-04 10:00 | 52.1 | 66.5 | 0.9 | 704.5 | 3.4 | - |
| 2024-05-04 09:00 | 43.3 | 73.3 | 0.8 | 667.3 | 5.9 | - |
| 2024-05-04 08:00 | 35.5 | 86.0 | 0.6 | 640.9 | 5.4 | 5.2 |
| 2024-05-04 07:00 | 22.0 | 107.7 | 0.7 | 591.7 | 4.7 | 4.0 |
| 2024-05-04 06:00 | 12.1 | 120.9 | 0.7 | 537.7 | 8.8 | 6.6 |
| 2024-05-04 05:00 | 8.0 | 131.6 | 0.7 | 509.8 | 11.8 | 8.2 |
| 2024-05-04 04:00 | 7.5 | 139.4 | 0.7 | 487.4 | 16.2 | 9.5 |
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.