Past 24 Hours Pollutant Concentration Summary
Tap Mun
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2024-04-20 21:00 | 6.6 | 108.1 | 1.1 | 301.7 | 9.4 | 3.3 |
| 2024-04-20 20:00 | 6.3 | 103.8 | 1.2 | 283.6 | 6.9 | 3.6 |
| 2024-04-20 19:00 | 5.5 | 102.5 | 1.2 | 277.3 | 2.7 | - |
| 2024-04-20 18:00 | 10.0 | 85.7 | 1.2 | 284.9 | 14.8 | 9.5 |
| 2024-04-20 17:00 | 4.1 | 61.4 | 1.2 | 272.0 | 16.7 | 11.9 |
| 2024-04-20 16:00 | 1.2 | 65.4 | 1.3 | 272.0 | 15.0 | 9.6 |
| 2024-04-20 15:00 | 2.2 | 66.3 | 1.3 | 268.8 | 14.9 | 8.4 |
| 2024-04-20 14:00 | 1.2 | 71.7 | 1.5 | 278.2 | 15.4 | 8.6 |
| 2024-04-20 13:00 | 0.4 | 71.7 | 1.3 | 286.7 | 12.1 | 6.5 |
| 2024-04-20 12:00 | 0.3 | 66.0 | 1.2 | 268.8 | 16.9 | 10.5 |
| 2024-04-20 11:00 | 0.3 | 61.8 | 1.3 | 274.8 | 11.9 | 7.7 |
| 2024-04-20 10:00 | 0.5 | 60.7 | 1.2 | 273.8 | 9.3 | 6.1 |
| 2024-04-20 09:00 | 2.4 | 57.8 | 1.0 | 263.8 | 13.0 | 8.4 |
| 2024-04-20 08:00 | 4.4 | 56.4 | 1.4 | 266.2 | 10.2 | 6.8 |
| 2024-04-20 07:00 | 4.4 | 57.3 | 1.1 | 264.3 | 11.6 | 6.4 |
| 2024-04-20 06:00 | 4.8 | 55.8 | 1.2 | 272.1 | 15.3 | 9.6 |
| 2024-04-20 05:00 | 4.3 | 53.9 | 1.2 | 283.1 | 10.4 | 5.6 |
| 2024-04-20 04:00 | 4.8 | 49.3 | 1.0 | 279.3 | 9.4 | 5.1 |
| 2024-04-20 03:00 | 9.4 | 44.1 | 1.2 | 265.1 | 8.6 | 4.6 |
| 2024-04-20 02:00 | 3.2 | 52.1 | 1.2 | 273.3 | 10.4 | 7.2 |
| 2024-04-20 01:00 | 3.1 | 57.0 | 1.2 | 274.4 | 10.5 | 6.0 |
| 2024-04-20 00:00 | 2.7 | 56.7 | 1.1 | 278.3 | 11.9 | 6.4 |
| 2024-04-19 23:00 | 4.3 | 54.5 | 1.1 | 270.3 | 6.9 | 3.5 |
| 2024-04-19 22:00 | 2.0 | 61.9 | 1.2 | 268.5 | 12.1 | 8.0 |
Remarks:
(1) Time shown is in Hong Kong time.
(2) Concentration shown is in microgram per cubic metre (µg/m3).
(3) Abbreviation:
NO2 - nitrogen dioxide, O3 - ozone,
SO2 - sulphur dioxide, CO - carbon monoxide,
PM10 - respirable suspended particulates,
PM2.5 - fine suspended particulates
(4) The pollutant concentration is based on real time data taken directly from EPD's Air Quality Monitoring Network.