Past 24 Hours Pollutant Concentration Summary
Tsuen Wan
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2022-06-28 05:00 | 46.4 | 2.7 | 11.3 | 245.1 | 5.6 | 4.2 |
| 2022-06-28 04:00 | 31.1 | 5.1 | 9.1 | 242.0 | 8.4 | 6.1 |
| 2022-06-28 03:00 | 24.1 | 12.7 | 9.7 | 251.6 | 5.8 | 4.5 |
| 2022-06-28 02:00 | 33.6 | 12.7 | 10.7 | 286.6 | 5.3 | 3.6 |
| 2022-06-28 01:00 | - | - | - | - | 5.7 | 4.4 |
| 2022-06-28 00:00 | 38.5 | 4.5 | 9.5 | 329.6 | 8.4 | 5.7 |
| 2022-06-27 23:00 | 39.3 | 1.0 | 10.9 | 400.2 | 6.8 | 4.0 |
| 2022-06-27 22:00 | 38.8 | 1.4 | 9.6 | 352.7 | 10.0 | 8.4 |
| 2022-06-27 21:00 | 45.3 | 4.4 | 9.9 | 334.8 | 10.2 | 8.8 |
| 2022-06-27 20:00 | 40.0 | 10.7 | 9.3 | 322.3 | 7.1 | 5.4 |
| 2022-06-27 19:00 | 33.4 | 20.5 | 8.0 | 308.6 | 4.3 | 1.4 |
| 2022-06-27 18:00 | 32.8 | 23.3 | 7.9 | 299.0 | 3.7 | 1.2 |
| 2022-06-27 17:00 | 25.8 | 30.7 | 8.2 | 265.3 | 4.1 | 1.1 |
| 2022-06-27 16:00 | 22.1 | 32.9 | 8.6 | 259.5 | 5.9 | 2.4 |
| 2022-06-27 15:00 | 26.1 | 30.6 | 8.2 | 280.4 | 7.3 | 4.2 |
| 2022-06-27 14:00 | 28.0 | 30.8 | 8.4 | 278.1 | 8.6 | 6.5 |
| 2022-06-27 13:00 | 25.9 | 33.0 | 8.1 | 259.9 | 9.2 | 5.6 |
| 2022-06-27 12:00 | 30.5 | 24.9 | 8.5 | 310.1 | 10.6 | 6.2 |
| 2022-06-27 11:00 | 27.3 | 23.3 | 8.7 | 272.1 | 10.8 | 6.1 |
| 2022-06-27 10:00 | 33.7 | 19.5 | 10.6 | 285.6 | 9.2 | 5.5 |
| 2022-06-27 09:00 | 40.8 | 6.8 | 10.8 | 362.0 | 6.6 | 4.7 |
| 2022-06-27 08:00 | 41.9 | 4.0 | 11.7 | 369.5 | 4.9 | 3.3 |
| 2022-06-27 07:00 | 39.5 | 4.2 | 9.5 | 309.0 | 4.2 | 2.9 |
| 2022-06-27 06:00 | 34.5 | 4.8 | 9.3 | 248.8 | 4.8 | 4.1 |
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.