Past 24 Hours Pollutant Concentration Summary
Tung Chung
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2023-01-30 05:00 | 14.2 | 43.6 | 6.4 | 402.9 | 21.0 | 13.8 |
| 2023-01-30 04:00 | 15.1 | 44.6 | 7.5 | 413.1 | 22.7 | 15.7 |
| 2023-01-30 03:00 | 15.5 | 46.4 | 11.8 | 412.8 | 23.4 | 16.5 |
| 2023-01-30 02:00 | 22.0 | 41.2 | 12.0 | 435.0 | 26.4 | 17.9 |
| 2023-01-30 01:00 | - | - | - | - | 30.3 | 20.6 |
| 2023-01-30 00:00 | 27.2 | 46.7 | 6.3 | 484.7 | 31.8 | 20.1 |
| 2023-01-29 23:00 | 34.1 | 36.3 | 6.7 | 496.8 | 34.2 | 22.1 |
| 2023-01-29 22:00 | 35.6 | 34.7 | 6.2 | 494.4 | 34.2 | 21.2 |
| 2023-01-29 21:00 | 39.5 | 28.5 | 6.3 | 491.8 | 32.6 | 20.5 |
| 2023-01-29 20:00 | 39.3 | 27.2 | 6.9 | 486.7 | 34.2 | 21.5 |
| 2023-01-29 19:00 | 38.9 | 28.1 | 6.6 | 473.7 | 41.4 | 25.1 |
| 2023-01-29 18:00 | 30.3 | 86.6 | 8.0 | 443.9 | 44.1 | 23.2 |
| 2023-01-29 17:00 | 22.8 | 99.5 | 8.8 | 453.3 | 47.4 | 25.6 |
| 2023-01-29 16:00 | 21.3 | 97.5 | 8.7 | 447.5 | 49.9 | 28.4 |
| 2023-01-29 15:00 | 23.0 | 93.0 | 9.2 | 448.3 | 50.9 | 28.6 |
| 2023-01-29 14:00 | 22.8 | 86.3 | 9.6 | 439.6 | 48.5 | 26.6 |
| 2023-01-29 13:00 | 19.1 | 75.9 | 9.2 | 430.7 | 42.3 | 22.5 |
| 2023-01-29 12:00 | 17.0 | 69.0 | 7.5 | 407.9 | 42.4 | 22.2 |
| 2023-01-29 11:00 | 16.0 | 69.6 | 7.5 | 407.5 | 42.9 | 23.3 |
| 2023-01-29 10:00 | 14.6 | 58.2 | 7.2 | 408.4 | 43.1 | 24.7 |
| 2023-01-29 09:00 | 11.2 | 67.3 | 7.4 | 396.0 | 43.2 | 24.8 |
| 2023-01-29 08:00 | 12.8 | 61.2 | 6.7 | 396.2 | 47.0 | 27.8 |
| 2023-01-29 07:00 | 7.6 | 76.4 | 7.0 | 398.0 | 49.8 | 28.9 |
| 2023-01-29 06:00 | 10.7 | 72.7 | 7.1 | 399.0 | 47.1 | 25.5 |
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.