Tsuen Wan
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2024-05-19 19:00 | 28.7 | 81.6 | 1.7 | 510.7 | 16.9 | 12.9 |
| 2024-05-19 18:00 | 25.6 | 80.5 | 1.8 | 518.3 | 19.3 | 13.2 |
| 2024-05-19 17:00 | 28.4 | 79.3 | 2.0 | 583.8 | 26.9 | 15.3 |
| 2024-05-19 16:00 | 23.4 | 87.5 | 1.6 | 625.9 | 27.6 | 15.7 |
| 2024-05-19 15:00 | 23.4 | 85.3 | 1.5 | 643.3 | 18.5 | 11.4 |
| 2024-05-19 14:00 | 24.3 | 81.8 | 1.6 | 617.7 | 20.1 | 12.9 |
| 2024-05-19 13:00 | 22.9 | 80.9 | 1.6 | 574.5 | 23.6 | 14.0 |
| 2024-05-19 12:00 | 22.5 | 81.4 | 1.6 | 534.8 | 24.8 | 15.0 |
| 2024-05-19 11:00 | 21.1 | 83.1 | 1.6 | 512.1 | 24.0 | 14.1 |
| 2024-05-19 10:00 | 19.4 | 82.9 | 1.9 | 522.6 | 26.7 | 17.0 |
| 2024-05-19 09:00 | 19.9 | 89.0 | 2.0 | 544.3 | 30.0 | 20.7 |
| 2024-05-19 08:00 | 21.3 | 103.9 | 2.9 | 572.5 | 31.0 | 22.2 |
| 2024-05-19 07:00 | 20.0 | 116.7 | 3.2 | 548.3 | 30.2 | 21.6 |
| 2024-05-19 06:00 | 13.9 | 125.0 | 3.3 | 505.9 | 28.2 | 20.0 |
| 2024-05-19 05:00 | 10.0 | 130.1 | 3.1 | 486.4 | 25.6 | 18.0 |
| 2024-05-19 04:00 | 10.4 | 128.8 | 3.1 | 460.4 | 25.3 | 18.2 |
| 2024-05-19 03:00 | 12.0 | 125.1 | 2.8 | 461.3 | 26.2 | 18.4 |
| 2024-05-19 02:00 | 14.5 | 124.2 | 2.7 | 508.6 | 26.5 | 18.0 |
| 2024-05-19 01:00 | 19.2 | 123.5 | 3.0 | 528.8 | 27.5 | 19.7 |
| 2024-05-19 00:00 | 23.4 | 120.6 | 2.5 | 498.1 | 27.7 | 20.8 |
| 2024-05-18 23:00 | 27.8 | 120.2 | 2.6 | 527.7 | 28.5 | 21.5 |
| 2024-05-18 22:00 | 33.0 | 120.2 | 2.6 | 555.0 | 27.5 | 22.2 |
| 2024-05-18 21:00 | 35.9 | 119.1 | 2.5 | 539.0 | 24.4 | 19.9 |
| 2024-05-18 20:00 | 40.3 | 108.7 | 2.0 | 542.2 | 22.4 | 18.1 |
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.