Past 24 Hours Pollutant Concentration Summary
Southern
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2022-10-06 02:00 | 10.7 | 86.3 | 3.4 | 205.2 | 31.9 | 10.9 |
| 2022-10-06 01:00 | 14.2 | 87.1 | 3.5 | 215.9 | 29.3 | 8.0 |
| 2022-10-06 00:00 | 11.7 | 91.7 | 3.4 | 228.1 | 35.5 | 13.9 |
| 2022-10-05 23:00 | 12.3 | 94.9 | 3.6 | 228.1 | 36.1 | 17.5 |
| 2022-10-05 22:00 | 12.8 | 94.5 | 3.6 | 232.1 | 31.8 | 13.8 |
| 2022-10-05 21:00 | 18.3 | 89.1 | 3.7 | 231.9 | 27.9 | 10.2 |
| 2022-10-05 20:00 | 21.1 | 84.8 | 3.6 | 250.6 | 25.4 | 7.9 |
| 2022-10-05 19:00 | 18.4 | 89.7 | 3.8 | 229.6 | 34.9 | 16.9 |
| 2022-10-05 18:00 | 21.9 | 83.1 | 3.7 | 220.6 | 35.9 | 19.3 |
| 2022-10-05 17:00 | 23.6 | 77.5 | 4.4 | 231.9 | 38.5 | 14.3 |
| 2022-10-05 16:00 | 21.0 | 76.2 | 5.1 | 231.6 | 40.6 | 15.2 |
| 2022-10-05 15:00 | - | 83.5 | 4.4 | 243.6 | - | - |
| 2022-10-05 14:00 | 25.1 | 86.1 | 4.2 | 246.5 | - | - |
| 2022-10-05 13:00 | - | 87.3 | 3.9 | 210.2 | - | - |
| 2022-10-05 12:00 | - | 92.5 | 4.2 | 252.8 | - | - |
| 2022-10-05 11:00 | - | 81.2 | 3.9 | 233.1 | 29.7 | 21.7 |
| 2022-10-05 10:00 | 24.6 | 79.2 | 3.5 | 248.7 | 28.6 | 21.2 |
| 2022-10-05 09:00 | 22.3 | 71.9 | 3.8 | 222.6 | 32.5 | 21.5 |
| 2022-10-05 08:00 | 21.6 | 62.0 | 3.4 | 252.7 | 33.5 | 24.3 |
| 2022-10-05 07:00 | 15.6 | 57.1 | 3.3 | 253.2 | 33.1 | 21.6 |
| 2022-10-05 06:00 | 10.2 | 71.2 | 3.8 | 222.3 | 28.7 | 14.6 |
| 2022-10-05 05:00 | 5.2 | 78.9 | 3.4 | 202.5 | 28.7 | 16.9 |
| 2022-10-05 04:00 | 4.9 | 74.2 | 3.4 | 229.5 | 32.2 | 21.1 |
| 2022-10-05 03:00 | 3.0 | 79.1 | 3.0 | 213.6 | 34.3 | 24.6 |
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.