Past 24 Hours Pollutant Concentration Summary
Tap Mun
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2023-06-09 22:00 | 1.9 | 28.2 | 4.1 | 402.3 | 11.2 | 2.7 |
| 2023-06-09 21:00 | 1.6 | 23.9 | 4.3 | 418.8 | 10.1 | 4.1 |
| 2023-06-09 20:00 | 3.8 | 31.2 | 4.6 | 393.2 | 8.2 | 4.0 |
| 2023-06-09 19:00 | 4.1 | 48.3 | 4.8 | 411.6 | 3.4 | 1.1 |
| 2023-06-09 18:00 | 1.8 | 54.5 | 4.7 | 400.5 | 6.4 | 4.2 |
| 2023-06-09 17:00 | 2.1 | 68.0 | 4.9 | 391.0 | 7.7 | 4.5 |
| 2023-06-09 16:00 | 2.0 | 74.7 | 4.6 | 381.2 | 6.9 | 3.0 |
| 2023-06-09 15:00 | 3.3 | 72.7 | 4.8 | 388.3 | 6.4 | 2.8 |
| 2023-06-09 14:00 | 5.0 | 64.1 | 4.0 | 377.7 | 3.9 | 2.1 |
| 2023-06-09 13:00 | 7.8 | 49.2 | 4.0 | 425.7 | 6.7 | 4.4 |
| 2023-06-09 12:00 | 11.7 | 45.4 | 4.2 | 410.6 | 8.4 | 4.9 |
| 2023-06-09 11:00 | 13.7 | 44.2 | 4.4 | 405.7 | 3.8 | 1.6 |
| 2023-06-09 10:00 | 7.2 | 42.9 | 3.9 | 388.7 | 4.6 | 2.5 |
| 2023-06-09 09:00 | 17.0 | 30.5 | 4.0 | 385.0 | 4.0 | 1.0 |
| 2023-06-09 08:00 | 3.9 | 39.6 | 4.0 | 389.8 | 6.9 | 1.1 |
| 2023-06-09 07:00 | 1.2 | 33.4 | 4.2 | 391.2 | 6.3 | 0.2 |
| 2023-06-09 06:00 | 1.1 | 27.1 | 4.6 | 403.4 | 10.5 | 0.9 |
| 2023-06-09 05:00 | 1.6 | 31.1 | 4.4 | 406.6 | 11.0 | 2.3 |
| 2023-06-09 04:00 | 1.2 | 26.1 | 4.2 | 411.4 | 7.1 | 0.6 |
| 2023-06-09 03:00 | 1.9 | 38.1 | 4.7 | 391.2 | 7.9 | 3.7 |
| 2023-06-09 02:00 | 3.1 | 38.4 | 4.2 | 388.8 | 5.1 | 2.0 |
| 2023-06-09 01:00 | 1.7 | 39.8 | 4.1 | 378.6 | 4.4 | 1.6 |
| 2023-06-09 00:00 | 5.5 | 40.0 | 4.1 | 403.7 | 3.8 | 1.4 |
| 2023-06-08 23:00 | 3.3 | 49.4 | 3.9 | 382.8 | 3.6 | 1.1 |
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.