Tung Chung
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2021-10-22 04:00 | 10.8 | 37.4 | 6.6 | 350.0 | 5.4 | 3.1 |
| 2021-10-22 03:00 | 13.9 | 43.8 | 6.3 | 350.4 | 7.4 | 4.9 |
| 2021-10-22 02:00 | 17.2 | 43.1 | 6.4 | 378.8 | 10.9 | 5.5 |
| 2021-10-22 01:00 | 19.7 | 39.4 | 6.8 | 378.7 | 16.0 | 8.0 |
| 2021-10-22 00:00 | 28.3 | 29.5 | 6.9 | 398.8 | 20.9 | 10.5 |
| 2021-10-21 23:00 | 38.7 | 20.0 | 7.2 | 417.3 | 21.9 | 9.1 |
| 2021-10-21 22:00 | 42.3 | 18.7 | 7.3 | 438.6 | 24.8 | 12.6 |
| 2021-10-21 21:00 | 38.4 | 21.2 | 7.3 | 465.8 | 26.2 | 12.1 |
| 2021-10-21 20:00 | 49.6 | 15.8 | 7.6 | 494.0 | 28.6 | 13.2 |
| 2021-10-21 19:00 | 49.7 | 18.7 | 7.4 | 467.4 | 22.5 | 9.5 |
| 2021-10-21 18:00 | 49.9 | 20.9 | 7.8 | 451.3 | 19.9 | 10.4 |
| 2021-10-21 17:00 | 45.7 | 21.5 | 7.2 | 424.0 | 25.3 | 11.2 |
| 2021-10-21 16:00 | 57.4 | 14.2 | 8.1 | 512.8 | 25.7 | 13.8 |
| 2021-10-21 15:00 | 57.9 | 11.4 | 8.4 | 522.0 | 26.3 | 15.3 |
| 2021-10-21 14:00 | 46.0 | 13.0 | 7.3 | 488.1 | 25.4 | 12.2 |
| 2021-10-21 13:00 | 46.4 | 20.4 | 7.3 | 471.6 | 37.6 | 17.0 |
| 2021-10-21 12:00 | 59.9 | 20.8 | 9.4 | 598.6 | 31.5 | 14.4 |
| 2021-10-21 11:00 | 51.9 | 34.9 | 7.8 | 273.7 | 18.8 | 9.2 |
| 2021-10-21 10:00 | 59.7 | 23.5 | 8.2 | 269.1 | 21.0 | 10.7 |
| 2021-10-21 09:00 | 41.0 | 24.8 | 8.1 | 280.2 | 16.8 | 10.4 |
| 2021-10-21 08:00 | 37.0 | 19.6 | 7.2 | 291.2 | 10.0 | 6.0 |
| 2021-10-21 07:00 | 22.1 | 16.3 | 6.7 | 225.4 | 11.6 | 8.9 |
| 2021-10-21 06:00 | 15.2 | 25.3 | 6.5 | 190.7 | 2.1 | - |
| 2021-10-21 05:00 | 9.6 | 37.1 | 6.3 | 174.7 | 6.5 | 4.4 |
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.
