Past 24 Hours Pollutant Concentration Summary
Tap Mun
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2021-10-16 10:00 | 10.1 | 48.1 | 6.9 | 940.4 | 20.0 | 10.4 |
| 2021-10-16 09:00 | 9.6 | 41.9 | 7.1 | 925.2 | 28.1 | 14.0 |
| 2021-10-16 08:00 | 9.7 | 37.6 | 7.0 | 913.4 | 27.0 | 16.7 |
| 2021-10-16 07:00 | 9.6 | 36.4 | 6.9 | 882.5 | 30.4 | 16.2 |
| 2021-10-16 06:00 | 9.7 | 35.3 | 7.0 | 846.8 | 26.8 | 14.4 |
| 2021-10-16 05:00 | 10.1 | 33.8 | 6.9 | 838.7 | 27.4 | 13.7 |
| 2021-10-16 04:00 | 12.6 | 29.6 | 6.6 | 838.3 | 25.3 | 15.5 |
| 2021-10-16 03:00 | 15.4 | 28.8 | 6.7 | 825.6 | 18.8 | 13.3 |
| 2021-10-16 02:00 | 11.7 | 35.5 | 8.0 | 736.6 | 22.8 | 13.1 |
| 2021-10-16 01:00 | - | - | - | - | 23.1 | 11.6 |
| 2021-10-16 00:00 | 14.2 | 29.3 | 6.5 | 722.8 | 13.1 | 8.1 |
| 2021-10-15 23:00 | 12.5 | 34.1 | 6.6 | 727.9 | 5.8 | - |
| 2021-10-15 22:00 | 15.0 | 33.3 | 6.8 | 705.5 | 3.2 | - |
| 2021-10-15 21:00 | 15.0 | 32.8 | 6.8 | 697.6 | 8.1 | 7.4 |
| 2021-10-15 20:00 | 11.0 | 40.6 | 6.8 | 643.1 | 7.5 | 2.8 |
| 2021-10-15 19:00 | 7.7 | 49.9 | 6.4 | 606.6 | 12.9 | 2.4 |
| 2021-10-15 18:00 | 8.1 | 51.8 | 6.6 | 602.6 | 12.6 | 0.2 |
| 2021-10-15 17:00 | 7.6 | 49.2 | 6.2 | 602.5 | - | - |
| 2021-10-15 16:00 | 5.7 | 53.0 | 6.0 | 596.2 | 4.0 | - |
| 2021-10-15 15:00 | 5.6 | 63.8 | 6.4 | 624.6 | 13.1 | 10.4 |
| 2021-10-15 14:00 | 9.3 | 65.1 | 6.2 | 695.6 | 17.2 | 12.2 |
| 2021-10-15 13:00 | 15.0 | 50.3 | 6.7 | 808.1 | 14.0 | 9.2 |
| 2021-10-15 12:00 | 12.0 | 49.8 | 6.7 | 798.5 | 13.2 | 11.2 |
| 2021-10-15 11:00 | 12.6 | 41.0 | 7.0 | 798.3 | 16.7 | 14.0 |
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.