Past 24 Hours Pollutant Concentration Summary
Tsuen Wan
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2024-05-06 21:00 | 45.2 | 33.5 | 2.3 | 284.7 | 18.1 | 12.9 |
| 2024-05-06 20:00 | 48.1 | 36.0 | 2.0 | 268.1 | 18.5 | 13.0 |
| 2024-05-06 19:00 | 52.3 | 44.7 | 2.3 | 249.2 | 17.4 | 11.8 |
| 2024-05-06 18:00 | 57.3 | 53.2 | 2.2 | 237.6 | 18.2 | 12.5 |
| 2024-05-06 17:00 | 56.4 | 57.9 | 3.4 | 230.4 | 24.9 | 15.2 |
| 2024-05-06 16:00 | 55.8 | 63.0 | 3.4 | 220.7 | 27.4 | 14.6 |
| 2024-05-06 15:00 | 40.3 | 77.5 | 3.6 | 332.7 | 30.1 | 16.8 |
| 2024-05-06 14:00 | 40.6 | 72.3 | 2.9 | 304.1 | 20.7 | 12.9 |
| 2024-05-06 13:00 | 44.7 | 64.3 | 3.3 | 282.1 | 27.8 | 15.8 |
| 2024-05-06 12:00 | 54.7 | 53.7 | 5.2 | 297.2 | 28.0 | 15.9 |
| 2024-05-06 11:00 | 62.6 | 42.3 | 5.9 | 362.2 | 25.9 | 16.3 |
| 2024-05-06 10:00 | 81.0 | 27.7 | 9.0 | 555.2 | 25.3 | 17.3 |
| 2024-05-06 09:00 | 60.7 | 25.4 | 5.7 | 718.1 | 21.9 | 15.8 |
| 2024-05-06 08:00 | 29.8 | 29.5 | 1.6 | 629.5 | 18.0 | 11.1 |
| 2024-05-06 07:00 | 24.1 | 29.7 | 0.9 | 600.9 | 18.9 | 11.0 |
| 2024-05-06 06:00 | 21.1 | 31.8 | 0.9 | 574.2 | 14.7 | 6.4 |
| 2024-05-06 05:00 | 15.7 | 38.6 | 1.0 | 560.7 | 15.7 | 6.8 |
| 2024-05-06 04:00 | 15.1 | 37.5 | 0.6 | 536.2 | 16.8 | 8.3 |
| 2024-05-06 03:00 | 17.6 | 40.4 | 0.7 | 543.2 | 17.0 | 8.7 |
| 2024-05-06 02:00 | 20.8 | 45.8 | 1.2 | 561.0 | 17.4 | 9.0 |
| 2024-05-06 01:00 | - | - | - | - | 17.0 | 9.4 |
| 2024-05-06 00:00 | 28.1 | 42.2 | 0.7 | 438.7 | 17.4 | 9.9 |
| 2024-05-05 23:00 | 32.0 | 38.9 | 0.9 | 456.9 | 16.5 | 9.7 |
| 2024-05-05 22:00 | 35.6 | 46.6 | 0.9 | 440.1 | 15.2 | 9.8 |
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.