Past 24 Hours Pollutant Concentration Summary
Tuen Mun
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2024-04-16 15:00 | 22.4 | 46.6 | 3.7 | 551.7 | 66.2 | 18.8 |
| 2024-04-16 14:00 | 19.6 | 50.1 | 3.8 | 559.9 | 47.7 | 18.0 |
| 2024-04-16 13:00 | 18.9 | 47.3 | 3.8 | 546.8 | 29.6 | 13.2 |
| 2024-04-16 12:00 | 19.9 | 45.9 | 3.7 | 555.9 | 28.0 | 10.1 |
| 2024-04-16 11:00 | 23.4 | 42.7 | 3.8 | 544.8 | 22.2 | 19.7 |
| 2024-04-16 10:00 | 33.4 | 27.3 | 3.9 | 625.5 | 21.0 | 16.1 |
| 2024-04-16 09:00 | 29.6 | 24.5 | 4.0 | 611.0 | 24.9 | 22.8 |
| 2024-04-16 08:00 | 40.0 | 9.3 | 4.8 | 653.9 | 27.9 | 20.1 |
| 2024-04-16 07:00 | 33.1 | 12.0 | 4.1 | 611.0 | 29.9 | 27.7 |
| 2024-04-16 06:00 | 25.2 | 17.8 | 3.9 | 583.2 | 31.9 | 30.9 |
| 2024-04-16 05:00 | 21.3 | 23.3 | 3.9 | 565.1 | 35.9 | - |
| 2024-04-16 04:00 | 22.7 | 25.1 | 4.1 | 629.3 | 44.7 | 36.1 |
| 2024-04-16 03:00 | 30.7 | 18.4 | 4.4 | 586.3 | 45.0 | 39.9 |
| 2024-04-16 02:00 | 34.5 | 16.9 | 4.6 | 592.9 | 41.1 | - |
| 2024-04-16 01:00 | 35.6 | 18.8 | 4.5 | 612.5 | 45.8 | 43.0 |
| 2024-04-16 00:00 | 40.0 | 17.3 | 4.6 | 607.6 | 40.2 | 40.1 |
| 2024-04-15 23:00 | 34.6 | 21.4 | 4.5 | 611.9 | 45.8 | 31.3 |
| 2024-04-15 22:00 | 37.8 | 20.0 | 4.5 | 628.6 | 35.4 | 34.9 |
| 2024-04-15 21:00 | 35.1 | 23.5 | 4.0 | 631.7 | 36.0 | 30.2 |
| 2024-04-15 20:00 | 37.4 | 27.4 | 4.0 | 637.6 | 35.0 | 27.1 |
| 2024-04-15 19:00 | 33.1 | 35.8 | 3.9 | 628.3 | 29.2 | 26.0 |
| 2024-04-15 18:00 | 30.5 | 39.4 | 3.6 | 633.2 | 29.0 | 20.2 |
| 2024-04-15 17:00 | 32.7 | 41.6 | 3.4 | 634.2 | 31.9 | 13.2 |
| 2024-04-15 16:00 | 25.1 | 56.1 | 3.6 | 614.7 | 24.3 | 17.8 |
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.