Past 24 Hours Pollutant Concentration Summary
Kwai Chung
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2023-09-28 20:00 | 49.7 | 58.5 | 5.7 | - | 17.7 | 12.4 |
| 2023-09-28 19:00 | 57.6 | 45.6 | 5.8 | - | 18.3 | 13.2 |
| 2023-09-28 18:00 | 45.4 | 48.7 | 5.2 | - | 18.9 | 13.2 |
| 2023-09-28 17:00 | 48.6 | 45.8 | 6.1 | - | 20.3 | 15.1 |
| 2023-09-28 16:00 | 51.8 | 48.0 | 5.8 | - | 17.5 | 12.5 |
| 2023-09-28 15:00 | 38.7 | 59.5 | 5.2 | - | 19.1 | 13.9 |
| 2023-09-28 14:00 | 25.4 | 68.6 | 5.2 | - | 13.5 | 9.7 |
| 2023-09-28 13:00 | - | - | - | - | 15.0 | 10.3 |
| 2023-09-28 12:00 | 45.5 | 54.9 | 5.7 | - | 15.5 | 9.5 |
| 2023-09-28 11:00 | 52.1 | 52.6 | 5.6 | - | 16.3 | 9.8 |
| 2023-09-28 10:00 | 35.5 | 51.2 | 6.1 | - | 16.7 | 10.3 |
| 2023-09-28 09:00 | 38.0 | 45.3 | 5.8 | - | 13.4 | 8.3 |
| 2023-09-28 08:00 | 34.8 | 46.1 | 6.2 | - | 12.1 | 7.3 |
| 2023-09-28 07:00 | 26.7 | 48.0 | 6.4 | - | 12.6 | 7.1 |
| 2023-09-28 06:00 | 22.6 | 54.6 | 6.6 | - | 13.1 | 6.6 |
| 2023-09-28 05:00 | - | - | - | - | 12.5 | 5.5 |
| 2023-09-28 04:00 | - | - | - | - | 13.9 | 6.8 |
| 2023-09-28 03:00 | 13.6 | 52.1 | 5.6 | - | 15.4 | 8.2 |
| 2023-09-28 02:00 | 15.4 | 57.0 | 6.0 | - | 20.2 | 11.3 |
| 2023-09-28 01:00 | 17.9 | 67.4 | 5.8 | - | 22.8 | 13.1 |
| 2023-09-28 00:00 | 25.2 | 62.6 | 6.2 | - | 22.4 | 13.1 |
| 2023-09-27 23:00 | 38.4 | 54.5 | 6.2 | - | 23.6 | 15.6 |
| 2023-09-27 22:00 | 27.2 | 60.8 | 6.0 | - | 24.8 | 16.8 |
| 2023-09-27 21:00 | 39.8 | 52.2 | 5.8 | - | 24.5 | 18.0 |
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.