Past 24 Hours Pollutant Concentration Summary
Southern
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2023-06-08 23:00 | 8.2 | 21.5 | 2.3 | 403.2 | 10.0 | 2.7 |
| 2023-06-08 22:00 | 13.6 | 23.7 | 2.4 | 458.0 | 8.0 | 2.9 |
| 2023-06-08 21:00 | 23.9 | 22.2 | 3.0 | 459.1 | 7.5 | 1.8 |
| 2023-06-08 20:00 | 29.2 | 22.3 | 2.8 | 409.6 | 14.5 | 4.9 |
| 2023-06-08 19:00 | 33.9 | 18.0 | 2.9 | 428.1 | 10.4 | 4.5 |
| 2023-06-08 18:00 | 20.8 | 30.8 | 2.9 | 409.6 | 7.4 | 2.9 |
| 2023-06-08 17:00 | 14.4 | 37.7 | 2.7 | 394.7 | 9.5 | 4.8 |
| 2023-06-08 16:00 | 14.7 | 40.1 | 3.0 | 413.2 | 9.1 | 4.2 |
| 2023-06-08 15:00 | 16.8 | 37.8 | 2.7 | 394.8 | 8.3 | 4.2 |
| 2023-06-08 14:00 | 9.0 | 50.3 | 2.4 | 390.7 | 5.8 | 1.6 |
| 2023-06-08 13:00 | 10.3 | 50.6 | 1.7 | 379.6 | 5.6 | 1.5 |
| 2023-06-08 12:00 | 9.5 | 49.3 | 1.9 | 374.8 | 8.8 | 4.9 |
| 2023-06-08 11:00 | 11.5 | 48.1 | 1.6 | 373.1 | 10.4 | 6.0 |
| 2023-06-08 10:00 | 13.1 | 40.2 | 1.4 | 383.6 | 5.6 | 1.3 |
| 2023-06-08 09:00 | 18.8 | 28.8 | 1.6 | 399.8 | 9.7 | 4.4 |
| 2023-06-08 08:00 | 20.5 | 26.9 | 1.6 | 373.8 | 8.2 | 1.8 |
| 2023-06-08 07:00 | 26.7 | 19.0 | 1.5 | 397.8 | 7.5 | 2.1 |
| 2023-06-08 06:00 | 21.5 | 24.8 | 1.5 | 370.2 | 9.5 | 4.7 |
| 2023-06-08 05:00 | 10.8 | 40.5 | 1.1 | 351.7 | 8.1 | 2.9 |
| 2023-06-08 04:00 | 10.9 | 42.1 | 1.4 | 362.7 | 8.8 | 3.0 |
| 2023-06-08 03:00 | 10.3 | 38.9 | 1.4 | 344.5 | 8.8 | 3.3 |
| 2023-06-08 02:00 | 14.6 | 34.9 | 1.5 | 357.8 | 7.5 | 2.3 |
| 2023-06-08 01:00 | 16.1 | 33.9 | 1.2 | 354.4 | 8.7 | 3.7 |
| 2023-06-08 00:00 | 20.3 | 28.7 | 1.3 | 403.6 | 10.8 | 3.4 |
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.