Past 24 Hours Pollutant Concentration Summary
Southern
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2022-09-27 09:00 | 21.1 | 51.9 | 3.2 | 266.9 | 19.6 | 9.0 |
| 2022-09-27 08:00 | 17.5 | 52.7 | 3.2 | 271.0 | 16.1 | 5.1 |
| 2022-09-27 07:00 | 13.4 | 54.4 | 2.8 | 225.3 | 13.7 | 9.5 |
| 2022-09-27 06:00 | 9.2 | 57.0 | 2.7 | 196.2 | 19.4 | 12.2 |
| 2022-09-27 05:00 | 6.3 | 60.1 | 2.8 | 162.3 | 20.3 | 8.3 |
| 2022-09-27 04:00 | 7.0 | 67.6 | 3.1 | 217.0 | 17.6 | 9.4 |
| 2022-09-27 03:00 | 5.4 | 63.3 | 2.8 | 175.0 | 19.8 | 9.8 |
| 2022-09-27 02:00 | 7.4 | 65.1 | 3.2 | 240.7 | 23.0 | 10.2 |
| 2022-09-27 01:00 | 8.6 | 76.6 | 3.1 | 210.1 | 29.4 | 10.1 |
| 2022-09-27 00:00 | 9.7 | 83.7 | 3.2 | 233.9 | 27.7 | 7.6 |
| 2022-09-26 23:00 | 9.9 | 80.9 | 2.9 | 228.5 | 21.0 | 4.1 |
| 2022-09-26 22:00 | 10.5 | 85.6 | 2.8 | 195.8 | 21.2 | 8.1 |
| 2022-09-26 21:00 | 12.2 | 86.9 | 3.0 | 221.5 | 21.4 | 13.1 |
| 2022-09-26 20:00 | 13.6 | 101.4 | 3.1 | 247.3 | 27.5 | 14.5 |
| 2022-09-26 19:00 | 18.5 | 111.5 | 3.6 | 279.6 | 40.0 | 16.2 |
| 2022-09-26 18:00 | 32.0 | 122.1 | 4.1 | 351.6 | 46.9 | 15.8 |
| 2022-09-26 17:00 | 28.4 | 130.2 | 4.2 | 340.6 | 49.1 | 15.2 |
| 2022-09-26 16:00 | 26.9 | 125.3 | 4.2 | 318.8 | 44.5 | 15.3 |
| 2022-09-26 15:00 | 29.5 | 141.5 | 4.4 | 339.6 | 33.1 | 15.7 |
| 2022-09-26 14:00 | 21.7 | 129.1 | 4.2 | 312.1 | 30.2 | 13.1 |
| 2022-09-26 13:00 | 20.6 | 129.9 | 4.3 | 304.7 | 39.8 | 10.9 |
| 2022-09-26 12:00 | 19.9 | 125.7 | 4.1 | 295.0 | 44.5 | 14.5 |
| 2022-09-26 11:00 | 22.5 | 133.5 | 4.2 | 329.6 | 40.7 | 13.6 |
| 2022-09-26 10:00 | 27.3 | 121.8 | 4.1 | 328.8 | 36.8 | 13.9 |
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.