Past 24 Hours Pollutant Concentration Summary
Tap Mun
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2021-06-24 01:00 | - | - | - | - | 9.7 | 3.3 |
| 2021-06-24 00:00 | 8.4 | 44.2 | 4.9 | 325.7 | 8.4 | 3.2 |
| 2021-06-23 23:00 | 9.2 | 47.0 | 5.3 | 323.0 | 6.0 | 2.4 |
| 2021-06-23 22:00 | 10.0 | 40.4 | 4.5 | 335.6 | 3.9 | 2.5 |
| 2021-06-23 21:00 | 12.6 | 59.0 | 4.8 | 310.1 | 5.3 | 3.6 |
| 2021-06-23 20:00 | 9.5 | 60.3 | 4.9 | 304.6 | 3.3 | - |
| 2021-06-23 19:00 | 8.7 | 69.5 | 4.9 | 310.5 | 3.4 | 2.9 |
| 2021-06-23 18:00 | 22.2 | 42.9 | 5.5 | 342.0 | 2.2 | - |
| 2021-06-23 17:00 | 7.4 | 54.4 | 7.8 | 325.5 | 2.5 | 2.1 |
| 2021-06-23 16:00 | - | - | - | - | 4.0 | 1.9 |
| 2021-06-23 15:00 | - | - | - | - | 1.3 | - |
| 2021-06-23 14:00 | 13.7 | 50.6 | 5.5 | 359.8 | 9.2 | - |
| 2021-06-23 13:00 | 23.0 | 48.2 | 6.1 | 389.8 | 9.7 | 9.6 |
| 2021-06-23 12:00 | 15.3 | 42.6 | 5.3 | 396.2 | 9.0 | 8.6 |
| 2021-06-23 11:00 | 13.7 | 39.8 | 5.2 | 382.3 | 10.0 | 7.2 |
| 2021-06-23 10:00 | 10.6 | 28.6 | 4.7 | 350.1 | 12.4 | 7.7 |
| 2021-06-23 09:00 | 6.5 | 13.8 | 5.1 | 345.0 | 12.0 | 5.4 |
| 2021-06-23 08:00 | 9.5 | 23.0 | 5.0 | 332.6 | 15.8 | 6.1 |
| 2021-06-23 07:00 | 9.3 | 17.9 | 5.1 | 326.3 | 15.3 | 6.0 |
| 2021-06-23 06:00 | 9.7 | 15.1 | 4.7 | 312.3 | 15.3 | 6.5 |
| 2021-06-23 05:00 | 9.0 | 22.8 | 4.8 | 302.5 | 11.6 | 6.4 |
| 2021-06-23 04:00 | 11.6 | 41.4 | 5.3 | 288.5 | 14.2 | 6.0 |
| 2021-06-23 03:00 | 9.8 | 26.0 | 5.4 | 302.3 | 13.8 | 7.1 |
| 2021-06-23 02:00 | 15.0 | 40.1 | 6.6 | 292.2 | 7.6 | 6.7 |
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.