Past 24 Hours Pollutant Concentration Summary
North
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2024-04-26 22:00 | 63.6 | 5.6 | 4.5 | 610.2 | 26.6 | 14.6 |
| 2024-04-26 21:00 | 76.5 | 5.4 | 5.1 | 685.5 | 24.1 | 14.7 |
| 2024-04-26 20:00 | 86.1 | 5.1 | 5.7 | 623.0 | 17.0 | 13.2 |
| 2024-04-26 19:00 | 85.9 | 5.4 | 5.6 | 1,163.7 | 14.1 | 11.8 |
| 2024-04-26 18:00 | 74.6 | 7.4 | 4.0 | 683.6 | 21.4 | 14.6 |
| 2024-04-26 17:00 | 73.7 | 7.0 | 4.1 | 706.4 | 18.6 | 17.5 |
| 2024-04-26 16:00 | 78.0 | 7.3 | 4.9 | 971.6 | 7.4 | - |
| 2024-04-26 15:00 | 85.8 | 9.2 | 4.5 | 739.6 | 8.5 | - |
| 2024-04-26 14:00 | 81.8 | 15.7 | 3.4 | 641.0 | 5.6 | - |
| 2024-04-26 13:00 | 69.7 | 22.8 | 2.9 | 530.2 | 4.0 | - |
| 2024-04-26 12:00 | 64.6 | 30.4 | 2.7 | 545.4 | 9.4 | - |
| 2024-04-26 11:00 | 62.8 | 34.1 | 2.8 | 439.7 | 12.2 | 8.0 |
| 2024-04-26 10:00 | 30.7 | 70.2 | 2.3 | 310.8 | 8.1 | - |
| 2024-04-26 09:00 | 26.6 | 36.8 | 2.6 | 283.4 | 12.0 | 9.8 |
| 2024-04-26 08:00 | 31.7 | 13.6 | 3.0 | 275.8 | 12.1 | 9.7 |
| 2024-04-26 07:00 | 44.3 | 12.8 | 3.1 | 452.1 | 6.6 | - |
| 2024-04-26 06:00 | 19.1 | 41.9 | 2.6 | 424.8 | 12.9 | 12.2 |
| 2024-04-26 05:00 | 8.6 | 53.8 | 2.9 | 338.1 | 13.0 | 9.5 |
| 2024-04-26 04:00 | 10.4 | 57.9 | 2.6 | 367.6 | 9.8 | 9.3 |
| 2024-04-26 03:00 | 8.1 | 67.1 | 1.7 | 368.9 | 11.8 | 11.4 |
| 2024-04-26 02:00 | 10.8 | 61.9 | 1.7 | 381.0 | 10.6 | - |
| 2024-04-26 01:00 | 13.1 | 53.7 | 1.6 | 347.8 | 5.7 | - |
| 2024-04-26 00:00 | 17.2 | 47.1 | 1.5 | 419.6 | 14.3 | 10.2 |
| 2024-04-25 23:00 | 40.1 | 28.2 | 1.5 | 671.8 | 17.0 | 14.7 |
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.