Tuen Mun
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2021-10-16 17:00 | 48.4 | 69.6 | 4.9 | 744.3 | 30.1 | 17.9 |
| 2021-10-16 16:00 | 38.9 | 81.4 | 4.7 | 720.9 | 36.9 | 11.1 |
| 2021-10-16 15:00 | 36.8 | 91.3 | 4.8 | 694.2 | 32.1 | 17.9 |
| 2021-10-16 14:00 | 34.0 | 98.2 | 5.0 | 715.8 | 35.0 | 15.1 |
| 2021-10-16 13:00 | 37.6 | 92.0 | 5.0 | 792.3 | 43.9 | 19.9 |
| 2021-10-16 12:00 | 36.1 | 73.6 | 5.2 | 813.6 | 33.2 | 24.9 |
| 2021-10-16 11:00 | 36.3 | 44.6 | 5.3 | 877.7 | 39.9 | 22.1 |
| 2021-10-16 10:00 | 37.5 | 25.8 | 5.5 | 881.1 | 29.2 | 21.0 |
| 2021-10-16 09:00 | 31.6 | 21.4 | 5.4 | 823.4 | 24.1 | 21.0 |
| 2021-10-16 08:00 | 24.8 | 22.4 | 5.0 | 781.7 | 27.9 | 11.2 |
| 2021-10-16 07:00 | 19.1 | 25.7 | 4.7 | 730.1 | 31.0 | 17.9 |
| 2021-10-16 06:00 | 20.0 | 23.6 | 4.7 | 698.6 | 29.0 | 17.0 |
| 2021-10-16 05:00 | 21.1 | 21.3 | 4.7 | 719.9 | 30.0 | 17.0 |
| 2021-10-16 04:00 | 16.9 | 25.8 | 4.8 | 630.7 | 27.1 | 20.9 |
| 2021-10-16 03:00 | 38.1 | 10.9 | 4.7 | 703.6 | 25.0 | 12.2 |
| 2021-10-16 02:00 | 40.4 | 5.0 | 4.9 | 710.4 | 21.1 | 11.0 |
| 2021-10-16 01:00 | 33.8 | 11.5 | 4.8 | 672.7 | 18.1 | 12.0 |
| 2021-10-16 00:00 | 37.2 | 9.8 | 4.8 | 679.3 | 17.0 | 12.0 |
| 2021-10-15 23:00 | 38.8 | 7.8 | 4.5 | 704.7 | 23.9 | 16.9 |
| 2021-10-15 22:00 | 42.7 | 8.1 | 4.7 | 749.6 | 23.0 | 18.0 |
| 2021-10-15 21:00 | 56.1 | 3.1 | 5.4 | 897.7 | 17.1 | - |
| 2021-10-15 20:00 | 58.7 | 4.3 | 5.5 | 813.4 | 17.0 | 12.1 |
| 2021-10-15 19:00 | 63.0 | 3.5 | 5.8 | 801.7 | 15.0 | 10.0 |
| 2021-10-15 18:00 | 50.4 | 12.7 | 5.0 | 666.6 | 9.1 | - |
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.
