Past 24 Hours Pollutant Concentration Summary
Tung Chung
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2023-02-07 18:00 | 70.9 | 7.0 | - | 485.3 | 27.7 | 18.3 |
| 2023-02-07 17:00 | 71.6 | 14.2 | - | 487.0 | 26.6 | 17.4 |
| 2023-02-07 16:00 | 65.8 | 9.7 | 18.1 | 415.3 | 27.6 | 16.1 |
| 2023-02-07 15:00 | 64.9 | 22.0 | 18.5 | 416.1 | 28.2 | 17.5 |
| 2023-02-07 14:00 | 65.7 | 11.9 | 18.3 | 427.9 | 17.9 | 12.8 |
| 2023-02-07 13:00 | 53.8 | 8.9 | 16.6 | 398.5 | 17.0 | 12.4 |
| 2023-02-07 12:00 | 57.8 | 7.5 | 17.1 | 364.6 | 27.7 | 18.5 |
| 2023-02-07 11:00 | 59.9 | 5.7 | 16.4 | 442.5 | 29.2 | 19.8 |
| 2023-02-07 10:00 | 59.5 | 3.9 | 15.3 | 521.9 | 19.4 | 13.8 |
| 2023-02-07 09:00 | 50.6 | - | 13.4 | 494.2 | 12.5 | 10.6 |
| 2023-02-07 08:00 | 43.1 | - | 12.5 | 390.3 | 10.8 | 9.8 |
| 2023-02-07 07:00 | 40.1 | 4.0 | 12.7 | 376.0 | 6.4 | - |
| 2023-02-07 06:00 | 28.5 | 8.0 | 12.1 | 322.6 | 4.4 | - |
| 2023-02-07 05:00 | 21.2 | 16.6 | 12.1 | 274.7 | 3.7 | - |
| 2023-02-07 04:00 | 19.3 | 15.5 | 12.4 | 281.8 | 4.5 | - |
| 2023-02-07 03:00 | 24.3 | 11.8 | 12.1 | 307.1 | 7.4 | 7.3 |
| 2023-02-07 02:00 | 25.8 | 14.4 | 12.2 | 333.1 | 13.0 | 11.6 |
| 2023-02-07 01:00 | - | - | - | - | 13.2 | 10.9 |
| 2023-02-07 00:00 | 32.7 | 22.7 | 12.3 | 351.1 | 9.3 | 8.7 |
| 2023-02-06 23:00 | 21.4 | 39.7 | 12.6 | 288.6 | 12.6 | 10.6 |
| 2023-02-06 22:00 | 31.7 | 30.2 | 12.9 | 318.7 | 20.1 | 14.5 |
| 2023-02-06 21:00 | 63.2 | 6.7 | 13.8 | 463.9 | 32.2 | 21.0 |
| 2023-02-06 20:00 | 77.7 | 2.3 | 14.4 | 533.5 | 32.5 | 22.7 |
| 2023-02-06 19:00 | 67.5 | 5.7 | 13.9 | 452.4 | 35.2 | 24.6 |
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.