Past 24 Hours Pollutant Concentration Summary
Tung Chung
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2024-04-20 23:00 | 20.2 | 56.9 | 1.1 | 503.9 | - | - |
| 2024-04-20 22:00 | 21.5 | 61.6 | 0.6 | 504.4 | 6.9 | 3.9 |
| 2024-04-20 21:00 | 26.3 | 57.1 | 1.2 | 545.4 | 17.4 | 10.4 |
| 2024-04-20 20:00 | 18.8 | 44.4 | 0.9 | 453.4 | 14.9 | 8.2 |
| 2024-04-20 19:00 | 7.5 | 49.2 | 1.3 | 415.8 | 16.7 | 11.1 |
| 2024-04-20 18:00 | 5.6 | 50.4 | 1.0 | 439.0 | 21.2 | 16.2 |
| 2024-04-20 17:00 | 7.7 | 52.7 | 1.7 | 413.9 | 22.5 | 17.1 |
| 2024-04-20 16:00 | 9.1 | 52.5 | 1.2 | 402.5 | 23.1 | 17.7 |
| 2024-04-20 15:00 | 8.9 | 56.9 | 1.2 | 448.5 | 18.8 | 12.8 |
| 2024-04-20 14:00 | 8.6 | 56.8 | 1.5 | 408.9 | 14.2 | 8.5 |
| 2024-04-20 13:00 | 6.6 | 61.2 | 1.2 | 430.1 | 16.4 | 11.0 |
| 2024-04-20 12:00 | 6.6 | 58.4 | 1.5 | 418.4 | 19.9 | 15.1 |
| 2024-04-20 11:00 | 6.6 | 56.0 | 0.7 | 406.3 | 19.4 | 15.2 |
| 2024-04-20 10:00 | 8.4 | 53.0 | 1.1 | 412.8 | 10.4 | 6.6 |
| 2024-04-20 09:00 | 7.2 | 51.2 | 0.9 | 434.3 | 9.7 | 5.7 |
| 2024-04-20 08:00 | 7.8 | 50.6 | 1.4 | 444.3 | 14.2 | 10.7 |
| 2024-04-20 07:00 | 5.7 | 51.7 | 0.8 | 408.3 | 18.0 | 14.6 |
| 2024-04-20 06:00 | 4.6 | 53.3 | 1.0 | 394.8 | 13.7 | 10.2 |
| 2024-04-20 05:00 | 3.8 | 52.6 | 1.1 | 406.6 | 14.8 | 11.3 |
| 2024-04-20 04:00 | 2.7 | 54.0 | 0.8 | 418.0 | 15.0 | 11.6 |
| 2024-04-20 03:00 | 2.7 | 54.3 | 1.4 | 393.0 | 12.3 | 8.4 |
| 2024-04-20 02:00 | 4.0 | 54.0 | 0.6 | 358.6 | 13.2 | 9.0 |
| 2024-04-20 01:00 | - | - | - | - | 15.6 | 11.2 |
| 2024-04-20 00:00 | 7.8 | 46.3 | 1.0 | 443.7 | 16.5 | 11.9 |
Remarks:
(1) Time shown is in Hong Kong time.
(2) Concentration shown is in microgram per cubic metre (µg/m3).
(3) Abbreviation:
NO2 - nitrogen dioxide, O3 - ozone,
SO2 - sulphur dioxide, CO - carbon monoxide,
PM10 - respirable suspended particulates,
PM2.5 - fine suspended particulates
(4) The pollutant concentration is based on real time data taken directly from EPD's Air Quality Monitoring Network.