Past 24 Hours Pollutant Concentration Summary
Central/Western
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2022-11-27 12:00 | 33.6 | 76.3 | 3.8 | - | 35.8 | 18.7 |
| 2022-11-27 11:00 | 27.2 | 73.6 | 3.6 | - | 22.9 | 13.2 |
| 2022-11-27 10:00 | 23.6 | 72.7 | 3.5 | - | 22.2 | 12.7 |
| 2022-11-27 09:00 | 26.6 | 64.7 | 3.7 | - | 19.0 | 11.8 |
| 2022-11-27 08:00 | 20.5 | 63.9 | 3.7 | - | 15.8 | 11.1 |
| 2022-11-27 07:00 | 15.1 | 65.9 | 3.9 | - | 17.5 | 9.5 |
| 2022-11-27 06:00 | 9.8 | 73.8 | 3.9 | - | 16.6 | 8.5 |
| 2022-11-27 05:00 | 9.8 | 75.3 | 4.1 | - | 15.6 | 8.4 |
| 2022-11-27 04:00 | 11.6 | 71.1 | 3.9 | - | 15.5 | 10.1 |
| 2022-11-27 03:00 | 13.7 | 71.1 | 4.9 | - | 13.7 | 8.7 |
| 2022-11-27 02:00 | - | 67.7 | - | - | 13.2 | 9.0 |
| 2022-11-27 01:00 | 19.4 | 65.0 | 4.7 | - | 11.0 | 8.4 |
| 2022-11-27 00:00 | 22.1 | 62.1 | 3.7 | - | 10.4 | 9.1 |
| 2022-11-26 23:00 | 20.3 | 54.8 | 4.1 | - | 8.2 | 7.2 |
| 2022-11-26 22:00 | 25.6 | 50.9 | 3.6 | - | 9.1 | 8.3 |
| 2022-11-26 21:00 | 29.3 | 49.2 | 3.6 | - | 6.1 | 5.4 |
| 2022-11-26 20:00 | 31.4 | 46.5 | 3.7 | - | 7.7 | 7.3 |
| 2022-11-26 19:00 | 43.4 | 36.0 | 3.9 | - | 5.2 | 4.4 |
| 2022-11-26 18:00 | 35.2 | 43.2 | 3.3 | - | 7.1 | 5.6 |
| 2022-11-26 17:00 | 42.8 | 39.7 | 3.3 | - | 7.4 | 5.7 |
| 2022-11-26 16:00 | 49.1 | 34.3 | 3.4 | - | 11.3 | 8.5 |
| 2022-11-26 15:00 | 44.1 | 35.4 | 3.7 | - | 9.2 | 6.7 |
| 2022-11-26 14:00 | 46.3 | 27.0 | 3.5 | - | 6.9 | 5.3 |
| 2022-11-26 13:00 | 44.9 | 21.8 | 3.8 | - | 17.0 | 12.2 |
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.