Tsuen Wan
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2023-03-29 02:00 | 11.7 | 100.8 | 2.9 | 356.5 | 10.6 | 7.0 |
| 2023-03-29 01:00 | - | - | - | - | 16.8 | 9.5 |
| 2023-03-29 00:00 | 28.7 | 81.7 | 1.1 | 403.1 | 26.1 | 16.1 |
| 2023-03-28 23:00 | 33.6 | 71.7 | 1.6 | 477.3 | 28.9 | 18.3 |
| 2023-03-28 22:00 | 36.2 | 64.1 | 1.7 | 495.9 | 33.0 | 23.1 |
| 2023-03-28 21:00 | 38.4 | 52.5 | 1.7 | 548.5 | 33.0 | 25.9 |
| 2023-03-28 20:00 | 38.1 | 47.5 | 1.6 | 536.6 | 28.2 | 21.2 |
| 2023-03-28 19:00 | 52.1 | 54.1 | 1.7 | 570.2 | 22.7 | 16.6 |
| 2023-03-28 18:00 | 49.8 | 45.8 | 1.7 | 511.6 | 24.5 | 18.2 |
| 2023-03-28 17:00 | 44.8 | 49.4 | 1.6 | 495.0 | 24.0 | 19.0 |
| 2023-03-28 16:00 | 49.1 | 50.3 | 1.6 | 513.0 | 21.4 | 16.4 |
| 2023-03-28 15:00 | 41.0 | 54.2 | 1.5 | 533.8 | 22.9 | 17.9 |
| 2023-03-28 14:00 | 37.8 | 53.6 | 1.4 | 500.5 | 19.7 | 15.5 |
| 2023-03-28 13:00 | 43.7 | 51.0 | 1.5 | 480.6 | 15.7 | 11.9 |
| 2023-03-28 12:00 | 37.8 | 49.2 | 1.5 | 504.9 | 15.8 | 12.8 |
| 2023-03-28 11:00 | 39.4 | 40.8 | 1.5 | 523.7 | 14.9 | 11.2 |
| 2023-03-28 10:00 | 41.7 | 27.4 | 1.6 | 553.8 | 11.9 | 8.8 |
| 2023-03-28 09:00 | 38.5 | 21.4 | 1.6 | 559.4 | 7.9 | 6.3 |
| 2023-03-28 08:00 | 38.3 | 19.1 | 1.7 | 572.1 | 8.1 | 7.5 |
| 2023-03-28 07:00 | 28.1 | 23.9 | 1.5 | 536.9 | 7.5 | - |
| 2023-03-28 06:00 | 18.0 | 29.3 | 1.6 | 483.8 | 3.6 | - |
| 2023-03-28 05:00 | 16.7 | 27.0 | 1.5 | 482.9 | 1.8 | 1.6 |
| 2023-03-28 04:00 | 16.6 | 30.1 | 1.5 | 464.4 | 3.3 | 2.7 |
| 2023-03-28 03:00 | 15.9 | 34.5 | 1.5 | 471.2 | 5.2 | 5.0 |
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.
