Past 24 Hours Pollutant Concentration Summary
Central/Western
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2022-11-29 14:00 | 30.2 | 43.4 | 4.7 | - | 13.0 | 8.0 |
| 2022-11-29 13:00 | 37.8 | 36.0 | 4.6 | - | 13.4 | 7.2 |
| 2022-11-29 12:00 | 35.6 | 34.3 | 4.8 | - | 15.3 | 9.0 |
| 2022-11-29 11:00 | 36.7 | 29.9 | 4.1 | - | 14.3 | 8.2 |
| 2022-11-29 10:00 | 39.9 | 22.9 | 4.6 | - | 14.4 | 8.3 |
| 2022-11-29 09:00 | 39.7 | 21.3 | 4.7 | - | 13.8 | 8.2 |
| 2022-11-29 08:00 | 34.4 | 22.5 | 4.0 | - | 14.2 | 8.2 |
| 2022-11-29 07:00 | 21.2 | 32.0 | 4.2 | - | 13.0 | 7.2 |
| 2022-11-29 06:00 | 18.0 | 31.1 | 4.8 | - | 15.2 | 9.2 |
| 2022-11-29 05:00 | 15.9 | 34.1 | 4.4 | - | 15.6 | 10.3 |
| 2022-11-29 04:00 | 18.9 | 31.3 | 4.6 | - | 14.4 | 10.0 |
| 2022-11-29 03:00 | 20.2 | 31.8 | 4.9 | - | 17.6 | 13.4 |
| 2022-11-29 02:00 | - | 28.2 | - | - | 16.7 | 12.6 |
| 2022-11-29 01:00 | 39.5 | 17.7 | 4.8 | - | 12.3 | 9.0 |
| 2022-11-29 00:00 | 31.7 | 22.3 | 4.5 | - | 11.9 | 8.2 |
| 2022-11-28 23:00 | 24.3 | 30.2 | 4.7 | - | 5.9 | 3.6 |
| 2022-11-28 22:00 | 8.0 | 48.0 | 4.4 | - | 4.1 | 2.3 |
| 2022-11-28 21:00 | 12.3 | 43.2 | 4.4 | - | 6.0 | 3.7 |
| 2022-11-28 20:00 | 14.6 | 42.3 | 4.2 | - | 6.7 | 3.8 |
| 2022-11-28 19:00 | 11.3 | 47.8 | 4.4 | - | 4.5 | 2.0 |
| 2022-11-28 18:00 | 15.7 | 40.0 | 4.8 | - | 7.0 | 3.7 |
| 2022-11-28 17:00 | 21.4 | 36.0 | 4.7 | - | 8.6 | 5.2 |
| 2022-11-28 16:00 | 22.1 | 37.8 | 4.5 | - | 10.0 | 5.1 |
| 2022-11-28 15:00 | 18.4 | 42.8 | 4.7 | - | 9.1 | 4.8 |
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.