Past 24 Hours Pollutant Concentration Summary
Yuen Long
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2020-08-09 18:00 | 20.9 | 36.0 | 4.7 | 374.3 | 14.4 | 8.0 |
| 2020-08-09 17:00 | 22.7 | 49.5 | 4.6 | 376.2 | 17.8 | 7.0 |
| 2020-08-09 16:00 | 24.9 | 51.1 | 4.5 | 384.9 | 21.1 | 5.6 |
| 2020-08-09 15:00 | 18.6 | 52.4 | 4.9 | 365.4 | 14.4 | 4.7 |
| 2020-08-09 14:00 | 21.0 | 26.0 | 5.4 | 352.4 | 17.7 | 5.8 |
| 2020-08-09 13:00 | 17.3 | 29.8 | 5.5 | 328.9 | 17.9 | 7.6 |
| 2020-08-09 12:00 | 15.5 | 29.1 | 4.9 | 335.2 | 11.8 | 7.1 |
| 2020-08-09 11:00 | 14.3 | 22.2 | 3.2 | 342.9 | 8.6 | 6.5 |
| 2020-08-09 10:00 | 13.9 | 17.8 | 3.2 | 331.4 | 7.2 | - |
| 2020-08-09 09:00 | 9.4 | 17.4 | 3.5 | 323.4 | 6.7 | 4.5 |
| 2020-08-09 08:00 | 10.8 | 12.1 | 3.6 | 350.5 | 7.6 | 6.6 |
| 2020-08-09 07:00 | 17.2 | 4.2 | 3.8 | 365.8 | 9.9 | - |
| 2020-08-09 06:00 | 18.1 | 1.4 | 3.7 | 340.6 | 10.7 | 6.6 |
| 2020-08-09 05:00 | 21.6 | 3.3 | 3.9 | 364.1 | 13.0 | 6.3 |
| 2020-08-09 04:00 | 24.9 | 3.9 | 4.2 | 356.5 | 66.9 | 5.9 |
| 2020-08-09 03:00 | 25.1 | 4.0 | 4.2 | 371.0 | 12.9 | 7.6 |
| 2020-08-09 02:00 | 26.4 | 2.3 | 4.6 | 374.8 | 11.4 | 6.3 |
| 2020-08-09 01:00 | - | - | - | - | 19.7 | 7.2 |
| 2020-08-09 00:00 | 27.4 | 3.8 | 4.0 | 375.7 | 9.6 | 7.4 |
| 2020-08-08 23:00 | 29.1 | 2.3 | 4.7 | 369.8 | 10.0 | 7.9 |
| 2020-08-08 22:00 | 26.5 | 6.5 | 4.5 | 397.7 | 15.6 | 8.4 |
| 2020-08-08 21:00 | 28.9 | 5.7 | 4.2 | 388.6 | 15.2 | 7.0 |
| 2020-08-08 20:00 | 25.0 | 16.1 | 3.7 | 418.2 | 12.7 | 11.4 |
| 2020-08-08 19:00 | 25.0 | 23.5 | 3.4 | 419.8 | 19.6 | 10.3 |
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.
