Past 24 Hours Pollutant Concentration Summary
Southern
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2022-11-27 14:00 | 21.0 | 95.3 | 4.5 | 530.6 | 47.5 | 17.9 |
| 2022-11-27 13:00 | 21.0 | 92.2 | 4.2 | 512.8 | 44.4 | 20.5 |
| 2022-11-27 12:00 | 23.9 | 83.3 | 3.9 | 491.7 | 38.4 | 18.0 |
| 2022-11-27 11:00 | 29.1 | 67.8 | 3.6 | 503.7 | 37.4 | 17.3 |
| 2022-11-27 10:00 | 21.8 | 70.1 | 3.5 | 463.5 | 32.9 | 15.7 |
| 2022-11-27 09:00 | 21.7 | 67.3 | 3.5 | 474.3 | 17.7 | 9.4 |
| 2022-11-27 08:00 | 16.5 | 68.7 | 3.4 | 477.9 | 8.2 | 3.9 |
| 2022-11-27 07:00 | 16.2 | 64.0 | 3.6 | 522.1 | 19.9 | 5.0 |
| 2022-11-27 06:00 | 14.1 | 68.1 | 3.7 | 513.2 | 29.1 | 9.5 |
| 2022-11-27 05:00 | 13.0 | 70.7 | 3.8 | 493.6 | 21.3 | 9.6 |
| 2022-11-27 04:00 | 10.5 | 70.2 | 3.9 | 475.0 | 19.7 | 9.4 |
| 2022-11-27 03:00 | 11.5 | 70.3 | 4.1 | 480.3 | 21.2 | 11.3 |
| 2022-11-27 02:00 | 14.7 | 63.8 | 4.2 | 483.3 | 22.6 | 10.2 |
| 2022-11-27 01:00 | 20.6 | 62.3 | 4.2 | 478.6 | 20.8 | 6.5 |
| 2022-11-27 00:00 | 15.9 | 67.7 | 3.8 | 451.6 | 13.7 | 6.5 |
| 2022-11-26 23:00 | 19.4 | 56.1 | 3.8 | 476.8 | 6.8 | - |
| 2022-11-26 22:00 | 21.8 | 51.3 | 3.7 | 464.3 | 2.9 | - |
| 2022-11-26 21:00 | 20.5 | 48.8 | 3.6 | 473.8 | 9.0 | 6.3 |
| 2022-11-26 20:00 | 22.5 | 50.4 | 3.6 | 463.8 | 11.0 | 4.6 |
| 2022-11-26 19:00 | 18.5 | 46.4 | 3.8 | 489.5 | 9.6 | 8.6 |
| 2022-11-26 18:00 | 17.9 | 50.2 | 3.3 | 462.6 | 14.5 | 11.2 |
| 2022-11-26 17:00 | 20.6 | 52.2 | 3.4 | 464.9 | 16.4 | 10.7 |
| 2022-11-26 16:00 | 29.9 | 42.6 | 3.8 | 480.8 | 16.0 | 9.5 |
| 2022-11-26 15:00 | 36.2 | 40.3 | 3.5 | 512.7 | 18.1 | 5.1 |
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.