Past 24 Hours Pollutant Concentration Summary
Tuen Mun
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2020-08-09 20:00 | 19.9 | 32.8 | 1.7 | 519.6 | 12.9 | 7.0 |
| 2020-08-09 19:00 | 17.5 | 40.6 | 1.8 | 497.1 | 9.1 | 7.0 |
| 2020-08-09 18:00 | 16.3 | 56.5 | 2.4 | 487.1 | 11.9 | 8.9 |
| 2020-08-09 17:00 | 19.4 | 67.4 | 3.5 | 502.7 | 13.9 | 8.0 |
| 2020-08-09 16:00 | 15.8 | 74.0 | 3.5 | 465.1 | 9.2 | 5.1 |
| 2020-08-09 15:00 | 14.3 | 68.3 | 2.4 | 461.2 | 10.0 | 7.9 |
| 2020-08-09 14:00 | 16.5 | 59.6 | 2.1 | 466.7 | 17.7 | 7.0 |
| 2020-08-09 13:00 | 18.6 | 51.2 | 2.6 | 486.1 | 11.2 | 8.9 |
| 2020-08-09 12:00 | 25.8 | 29.3 | 4.0 | 503.8 | 13.9 | 10.9 |
| 2020-08-09 11:00 | 28.9 | 18.3 | 7.8 | 514.6 | 15.9 | 6.2 |
| 2020-08-09 10:00 | 17.3 | 23.7 | 2.5 | 481.3 | 10.2 | 4.1 |
| 2020-08-09 09:00 | 17.1 | 20.0 | 2.3 | 580.7 | 8.1 | 5.9 |
| 2020-08-09 08:00 | 18.6 | 15.1 | 2.2 | 599.4 | 10.9 | 6.0 |
| 2020-08-09 07:00 | 26.7 | 7.9 | 2.6 | 505.5 | 9.1 | 4.1 |
| 2020-08-09 06:00 | 17.8 | 14.9 | 2.2 | 485.8 | 8.0 | 4.0 |
| 2020-08-09 05:00 | 19.6 | 17.1 | 2.5 | 532.8 | 9.0 | 5.9 |
| 2020-08-09 04:00 | 13.7 | 28.5 | 2.8 | 467.7 | 9.0 | 7.0 |
| 2020-08-09 03:00 | 35.3 | 13.3 | 4.2 | 496.0 | 12.9 | 5.1 |
| 2020-08-09 02:00 | 43.2 | 7.1 | 4.2 | 516.3 | 30.4 | 5.0 |
| 2020-08-09 01:00 | 39.6 | 8.4 | 3.4 | 500.7 | 17.5 | 4.0 |
| 2020-08-09 00:00 | 34.5 | 16.1 | 2.6 | 516.7 | 18.0 | 3.0 |
| 2020-08-08 23:00 | 33.0 | 19.9 | 3.4 | 520.2 | 10.3 | 4.9 |
| 2020-08-08 22:00 | 25.0 | 29.8 | 2.5 | 505.9 | 11.0 | 8.9 |
| 2020-08-08 21:00 | 34.9 | 21.1 | 3.4 | 513.5 | 12.9 | 10.9 |
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.
