Past 24 Hours Pollutant Concentration Summary
Tsuen Wan
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2022-10-06 00:00 | 17.5 | 78.0 | 8.0 | 409.7 | 18.6 | 9.7 |
| 2022-10-05 23:00 | 22.6 | 76.2 | 8.0 | 454.9 | 20.5 | 12.7 |
| 2022-10-05 22:00 | 23.4 | 76.2 | 8.5 | 471.3 | 23.0 | 14.9 |
| 2022-10-05 21:00 | 31.0 | 69.2 | 8.5 | 484.7 | 21.5 | 12.8 |
| 2022-10-05 20:00 | 40.5 | 57.2 | 8.5 | 510.9 | 22.2 | 13.2 |
| 2022-10-05 19:00 | 44.0 | 54.2 | 8.5 | 515.8 | 21.2 | 12.6 |
| 2022-10-05 18:00 | 40.1 | 56.8 | 8.5 | 450.9 | 20.8 | 11.9 |
| 2022-10-05 17:00 | 31.2 | 61.6 | 8.4 | 439.4 | 21.0 | 12.4 |
| 2022-10-05 16:00 | 28.0 | 70.6 | 8.4 | 426.4 | 21.2 | 13.4 |
| 2022-10-05 15:00 | 29.3 | 69.9 | 8.7 | 456.4 | 22.3 | 15.9 |
| 2022-10-05 14:00 | 32.1 | 73.9 | 8.7 | 470.6 | 22.2 | 18.1 |
| 2022-10-05 13:00 | 30.4 | 75.6 | 8.7 | 460.2 | 20.2 | 16.0 |
| 2022-10-05 12:00 | 29.8 | 74.6 | 8.7 | 453.7 | 17.2 | 12.4 |
| 2022-10-05 11:00 | 29.6 | 72.1 | 8.8 | 493.2 | 25.3 | 19.1 |
| 2022-10-05 10:00 | 47.6 | 51.8 | 9.2 | 546.1 | 30.4 | 24.0 |
| 2022-10-05 09:00 | 42.8 | 55.8 | 9.2 | 522.9 | 26.3 | 20.9 |
| 2022-10-05 08:00 | 46.1 | 30.7 | 9.1 | 579.4 | 28.0 | 22.9 |
| 2022-10-05 07:00 | 27.2 | 43.1 | 8.7 | 479.1 | 25.9 | 21.7 |
| 2022-10-05 06:00 | 18.5 | 55.8 | 8.5 | 422.2 | 23.6 | 18.6 |
| 2022-10-05 05:00 | 11.9 | 64.5 | 8.5 | 422.1 | 25.3 | 20.0 |
| 2022-10-05 04:00 | 12.6 | 64.9 | 8.1 | 432.1 | 27.4 | 22.4 |
| 2022-10-05 03:00 | 18.4 | 51.0 | 8.5 | 467.2 | 29.0 | 23.1 |
| 2022-10-05 02:00 | 25.1 | 35.9 | 8.7 | 516.9 | 30.6 | 24.6 |
| 2022-10-05 01:00 | 28.9 | 32.8 | 8.7 | 529.4 | 31.6 | 25.6 |
Remarks:
(1) Time shown is in Hong Kong time.
(2) NO2 - nitrogen dioxide, O3 - ozone,
SO2 - sulphur dioxide, CO - carbon monoxide,
PM10 - respirable suspended particulates,
PM2.5 - fine suspended particulates
(3) Concentration shown is in µg/m3.
(4) The pollutant concentration is based on real time data taken directly from EPD's Air Quality Monitoring Network.