Kwai Chung
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2023-03-20 23:00 | 47.3 | 37.2 | 5.9 | - | 30.0 | 14.5 |
| 2023-03-20 22:00 | 40.1 | 47.5 | 5.9 | - | 35.3 | 19.9 |
| 2023-03-20 21:00 | 38.5 | 51.7 | 5.9 | - | 34.8 | 20.1 |
| 2023-03-20 20:00 | 50.0 | 45.3 | 6.1 | - | 34.9 | 19.9 |
| 2023-03-20 19:00 | 73.5 | 30.5 | 6.4 | - | 32.1 | 17.2 |
| 2023-03-20 18:00 | 55.6 | 47.6 | 6.1 | - | 30.6 | 15.8 |
| 2023-03-20 17:00 | 46.3 | 60.0 | 6.1 | - | 34.0 | 18.9 |
| 2023-03-20 16:00 | 54.6 | 55.1 | 6.2 | - | 36.1 | 20.8 |
| 2023-03-20 15:00 | 53.0 | 57.4 | 6.1 | - | 37.6 | 22.8 |
| 2023-03-20 14:00 | 52.5 | 53.2 | 5.7 | - | 35.0 | 19.8 |
| 2023-03-20 13:00 | 45.6 | 53.8 | 5.5 | - | 42.0 | 23.8 |
| 2023-03-20 12:00 | 57.4 | 47.1 | 5.6 | - | 39.6 | 21.9 |
| 2023-03-20 11:00 | 54.4 | 46.7 | 5.5 | - | 36.4 | 22.0 |
| 2023-03-20 10:00 | 48.4 | 47.7 | 5.7 | - | 31.2 | 20.2 |
| 2023-03-20 09:00 | 51.9 | 44.6 | 5.8 | - | 22.3 | 15.1 |
| 2023-03-20 08:00 | 44.4 | 45.9 | 5.7 | - | 16.3 | 10.8 |
| 2023-03-20 07:00 | 20.5 | 65.2 | 5.4 | - | 13.6 | 9.6 |
| 2023-03-20 06:00 | 13.8 | 68.6 | 5.6 | - | 8.9 | 6.9 |
| 2023-03-20 05:00 | 14.2 | 69.7 | 5.6 | - | 6.5 | 4.9 |
| 2023-03-20 04:00 | - | - | - | - | 5.7 | 4.6 |
| 2023-03-20 03:00 | 6.1 | 79.6 | 5.3 | - | 4.3 | 4.2 |
| 2023-03-20 02:00 | 7.5 | 77.7 | 5.2 | - | 7.0 | 6.0 |
| 2023-03-20 01:00 | 18.1 | 73.5 | 5.2 | - | 9.4 | 7.4 |
| 2023-03-20 00:00 | 15.5 | 78.5 | 4.9 | - | 17.3 | 11.9 |
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.
