Past 24 Hours Pollutant Concentration Summary
Tsuen Wan
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2020-08-09 19:00 | 32.9 | 23.5 | 6.4 | 424.2 | 10.0 | 4.6 |
| 2020-08-09 18:00 | 34.5 | 28.0 | 6.3 | 445.2 | 13.3 | 6.0 |
| 2020-08-09 17:00 | 38.8 | 31.3 | 7.4 | 444.6 | 14.8 | 7.7 |
| 2020-08-09 16:00 | 34.0 | 34.6 | 7.4 | 418.0 | 10.3 | 5.3 |
| 2020-08-09 15:00 | 22.0 | 41.8 | 6.0 | 383.7 | 12.0 | 7.1 |
| 2020-08-09 14:00 | 29.6 | 42.2 | 6.3 | 447.2 | 10.4 | 6.1 |
| 2020-08-09 13:00 | 21.2 | 42.1 | 6.4 | 418.8 | 9.8 | 5.0 |
| 2020-08-09 12:00 | 27.4 | 23.5 | 8.0 | 411.4 | 9.4 | 4.5 |
| 2020-08-09 11:00 | 29.0 | 19.8 | 6.2 | 412.8 | 6.7 | 2.6 |
| 2020-08-09 10:00 | 17.4 | 23.0 | 4.9 | 405.2 | 5.1 | 2.0 |
| 2020-08-09 09:00 | 10.1 | 21.3 | 5.2 | 393.1 | 4.4 | 1.2 |
| 2020-08-09 08:00 | 8.9 | 15.6 | 5.0 | 406.8 | 7.5 | 2.6 |
| 2020-08-09 07:00 | 13.4 | 4.9 | 5.0 | 452.5 | 9.5 | 3.8 |
| 2020-08-09 06:00 | 15.6 | 3.6 | 5.2 | 438.8 | 10.9 | 4.3 |
| 2020-08-09 05:00 | 18.2 | 3.2 | 5.4 | 416.9 | 13.4 | 6.0 |
| 2020-08-09 04:00 | 24.3 | 4.2 | 5.6 | 426.1 | 13.9 | 7.6 |
| 2020-08-09 03:00 | 20.0 | 7.1 | 5.3 | 436.7 | 12.3 | 6.6 |
| 2020-08-09 02:00 | 14.9 | 11.7 | 7.4 | 419.3 | 10.2 | 4.7 |
| 2020-08-09 01:00 | - | - | - | - | 8.9 | 3.6 |
| 2020-08-09 00:00 | 22.6 | 10.7 | 4.9 | 473.8 | 10.4 | 4.8 |
| 2020-08-08 23:00 | 31.5 | 6.6 | 5.1 | 566.2 | 11.6 | 6.3 |
| 2020-08-08 22:00 | 30.4 | 8.8 | 5.1 | 601.3 | 10.8 | 6.0 |
| 2020-08-08 21:00 | 30.3 | 8.7 | 5.1 | 575.8 | 11.4 | 6.4 |
| 2020-08-08 20:00 | 36.7 | 5.7 | 5.2 | 607.8 | 12.4 | 5.9 |
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.
