Past 24 Hours Pollutant Concentration Summary
Tsuen Wan
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2023-06-08 16:00 | 39.3 | 21.7 | 4.1 | 633.0 | 15.1 | 5.8 |
| 2023-06-08 15:00 | 36.3 | 29.3 | 3.8 | 669.9 | 14.7 | 5.6 |
| 2023-06-08 14:00 | 33.5 | 35.2 | 3.6 | 633.9 | 9.8 | 5.4 |
| 2023-06-08 13:00 | 39.6 | 32.1 | 4.0 | 669.9 | 15.1 | 8.0 |
| 2023-06-08 12:00 | 39.0 | 31.4 | 3.4 | 669.6 | 19.0 | 11.4 |
| 2023-06-08 11:00 | 45.2 | 18.3 | 3.7 | 811.1 | 9.2 | 5.7 |
| 2023-06-08 10:00 | 32.1 | 21.8 | 3.1 | 768.8 | 7.2 | 4.8 |
| 2023-06-08 09:00 | 50.1 | 8.7 | 4.0 | 841.6 | 8.4 | 4.6 |
| 2023-06-08 08:00 | 33.4 | 14.1 | 2.9 | 764.3 | 8.1 | 4.7 |
| 2023-06-08 07:00 | 25.5 | 18.8 | 2.4 | 695.6 | 7.5 | 4.5 |
| 2023-06-08 06:00 | 20.8 | 29.7 | 2.4 | 649.0 | 9.1 | 5.4 |
| 2023-06-08 05:00 | 17.3 | 35.8 | 2.4 | 629.2 | 7.8 | 4.5 |
| 2023-06-08 04:00 | 13.1 | 36.7 | 2.5 | 624.5 | 7.6 | 3.2 |
| 2023-06-08 03:00 | 12.5 | 35.3 | 2.4 | 623.7 | 11.3 | 6.3 |
| 2023-06-08 02:00 | 17.5 | 31.4 | 2.6 | 624.0 | 11.5 | 7.1 |
| 2023-06-08 01:00 | 31.4 | 21.7 | 2.7 | 725.6 | 8.7 | 5.0 |
| 2023-06-08 00:00 | 28.7 | 21.6 | 2.6 | 697.0 | 9.7 | 5.3 |
| 2023-06-07 23:00 | 33.0 | 18.8 | 2.7 | 725.2 | 12.1 | 6.5 |
| 2023-06-07 22:00 | 38.2 | 14.6 | 3.1 | 800.1 | 11.7 | 7.2 |
| 2023-06-07 21:00 | 38.0 | 18.4 | 3.1 | 783.0 | 14.5 | 8.9 |
| 2023-06-07 20:00 | 48.9 | 10.9 | 3.2 | 792.5 | 14.5 | 8.5 |
| 2023-06-07 19:00 | 58.3 | 5.7 | 3.8 | 806.5 | 13.0 | 9.0 |
| 2023-06-07 18:00 | 57.6 | 6.3 | 4.2 | 753.2 | 12.5 | 8.2 |
| 2023-06-07 17:00 | 45.3 | 16.1 | 3.0 | 774.4 | 14.7 | 9.6 |
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.