Tuen Mun
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2021-06-21 06:00 | 24.8 | 52.5 | 3.4 | 539.8 | 27.2 | 12.0 |
| 2021-06-21 05:00 | 11.0 | 60.6 | 3.3 | 524.1 | 20.4 | 16.7 |
| 2021-06-21 04:00 | 13.0 | 57.6 | 3.4 | 522.8 | 26.8 | 18.0 |
| 2021-06-21 03:00 | 12.8 | 56.5 | 3.3 | 526.7 | 28.0 | 10.3 |
| 2021-06-21 02:00 | 15.0 | 53.8 | 3.3 | 533.2 | 30.9 | 18.7 |
| 2021-06-21 01:00 | 24.4 | 44.8 | 3.3 | 569.7 | 28.1 | 14.2 |
| 2021-06-21 00:00 | 18.6 | 53.5 | 3.1 | 587.8 | 29.9 | 12.1 |
| 2021-06-20 23:00 | 24.1 | 46.3 | 3.2 | 567.1 | 27.1 | 13.9 |
| 2021-06-20 22:00 | 20.7 | 47.7 | 3.3 | 579.5 | 35.7 | 10.1 |
| 2021-06-20 21:00 | 30.3 | 38.5 | 3.2 | 601.6 | 27.3 | 12.9 |
| 2021-06-20 20:00 | 27.2 | 41.2 | 3.3 | 580.6 | 27.0 | 10.1 |
| 2021-06-20 19:00 | 19.2 | 47.3 | 3.3 | 569.8 | 22.2 | 7.1 |
| 2021-06-20 18:00 | 21.2 | 46.8 | 3.4 | 548.7 | 24.9 | 8.9 |
| 2021-06-20 17:00 | 17.2 | 59.7 | 3.3 | 555.3 | 27.9 | 11.9 |
| 2021-06-20 16:00 | 17.3 | 68.5 | 3.6 | 570.9 | 25.1 | 15.9 |
| 2021-06-20 15:00 | 14.1 | 76.6 | 3.5 | 570.4 | 27.9 | 13.1 |
| 2021-06-20 14:00 | 16.7 | 77.1 | 3.4 | 593.1 | 35.7 | 14.9 |
| 2021-06-20 13:00 | 15.4 | 71.0 | 3.4 | 557.6 | 37.0 | 13.1 |
| 2021-06-20 12:00 | 15.3 | 66.5 | 3.4 | 527.3 | 31.2 | 12.0 |
| 2021-06-20 11:00 | 15.6 | 61.3 | 3.3 | 529.0 | 23.3 | 11.0 |
| 2021-06-20 10:00 | 15.6 | 61.1 | 3.3 | 521.8 | 27.8 | 12.0 |
| 2021-06-20 09:00 | 18.5 | 52.5 | 3.4 | 536.9 | 25.1 | 8.1 |
| 2021-06-20 08:00 | 18.0 | 50.7 | 3.2 | 531.8 | 23.1 | 12.8 |
| 2021-06-20 07:00 | 18.1 | 48.7 | 3.2 | 536.6 | 25.9 | 8.2 |
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.
