Past 24 Hours Pollutant Concentration Summary
Yuen Long
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2020-06-05 04:00 | 7.7 | 20.5 | 3.9 | 319.2 | 9.0 | 7.7 |
| 2020-06-05 03:00 | 8.8 | 19.7 | 3.7 | 329.8 | 7.5 | 5.8 |
| 2020-06-05 02:00 | 10.4 | 19.1 | 4.0 | 341.6 | 7.5 | 5.7 |
| 2020-06-05 01:00 | 11.0 | 18.9 | 4.1 | 336.9 | 8.7 | 6.0 |
| 2020-06-05 00:00 | 17.8 | 11.5 | 4.3 | 340.1 | 7.0 | 6.9 |
| 2020-06-04 23:00 | 20.4 | 9.2 | 3.9 | 361.3 | 8.0 | 8.0 |
| 2020-06-04 22:00 | 14.5 | 19.4 | 3.8 | 368.1 | 12.0 | 7.3 |
| 2020-06-04 21:00 | 18.6 | 15.1 | 3.9 | 380.8 | 13.0 | 9.0 |
| 2020-06-04 20:00 | 19.4 | 19.6 | 4.5 | 381.3 | 11.9 | 10.8 |
| 2020-06-04 19:00 | 21.7 | 19.8 | 4.0 | 391.2 | 21.6 | 9.5 |
| 2020-06-04 18:00 | 20.5 | 25.6 | 4.2 | 365.5 | 16.6 | 7.1 |
| 2020-06-04 17:00 | 18.8 | 32.6 | 3.9 | 346.5 | 10.6 | 5.2 |
| 2020-06-04 16:00 | 11.7 | 38.2 | 4.1 | 312.4 | 11.6 | 5.7 |
| 2020-06-04 15:00 | 9.3 | 43.4 | 3.5 | 320.7 | 10.6 | 4.8 |
| 2020-06-04 14:00 | 16.6 | 35.7 | 4.1 | 335.9 | 15.6 | 5.1 |
| 2020-06-04 13:00 | 16.6 | 34.8 | 3.9 | 303.2 | 22.4 | 4.8 |
| 2020-06-04 12:00 | 18.0 | 34.4 | 4.2 | 327.8 | 17.5 | - |
| 2020-06-04 11:00 | - | - | - | - | 12.6 | - |
| 2020-06-04 10:00 | - | - | - | - | 15.5 | - |
| 2020-06-04 09:00 | 14.7 | 19.7 | 4.1 | 368.2 | 17.0 | 7.9 |
| 2020-06-04 08:00 | 20.6 | 11.3 | 3.9 | 397.7 | 12.7 | 6.8 |
| 2020-06-04 07:00 | 18.4 | 10.2 | 3.8 | 373.5 | 11.7 | 8.0 |
| 2020-06-04 06:00 | 15.7 | 9.3 | 3.6 | 369.8 | 16.1 | 8.1 |
| 2020-06-04 05:00 | 12.1 | 16.1 | 3.5 | 368.2 | 10.9 | 7.2 |
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.
