Kwai Chung
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2022-01-20 18:00 | 63.1 | 63.9 | 7.5 | - | 27.6 | 18.0 |
| 2022-01-20 17:00 | 44.7 | 80.7 | 7.2 | - | 27.9 | 18.6 |
| 2022-01-20 16:00 | 54.7 | 79.1 | 7.4 | - | 27.6 | 19.2 |
| 2022-01-20 15:00 | 50.2 | 81.7 | 7.2 | - | 20.4 | 13.9 |
| 2022-01-20 14:00 | 39.4 | 87.4 | 7.3 | - | 22.2 | 17.0 |
| 2022-01-20 13:00 | 46.7 | 72.0 | 7.7 | - | 22.9 | 16.6 |
| 2022-01-20 12:00 | 55.1 | 57.4 | 8.1 | - | 22.9 | 15.4 |
| 2022-01-20 11:00 | 56.1 | 43.5 | 8.3 | - | 25.3 | 17.7 |
| 2022-01-20 10:00 | 70.9 | 26.7 | 9.1 | - | 28.4 | 20.1 |
| 2022-01-20 09:00 | 76.7 | 18.3 | 8.5 | - | 24.1 | 17.9 |
| 2022-01-20 08:00 | 63.0 | 24.8 | 7.8 | - | 22.3 | 16.8 |
| 2022-01-20 07:00 | 39.2 | 37.5 | 7.7 | - | 20.6 | 14.9 |
| 2022-01-20 06:00 | 22.9 | 53.6 | 7.7 | - | 18.8 | 14.3 |
| 2022-01-20 05:00 | 20.0 | 53.5 | 6.9 | - | 16.8 | 12.7 |
| 2022-01-20 04:00 | - | - | - | - | 16.8 | 13.2 |
| 2022-01-20 03:00 | 20.7 | 47.7 | 6.6 | - | 15.6 | 11.5 |
| 2022-01-20 02:00 | 20.9 | 49.8 | 6.8 | - | 14.9 | 10.6 |
| 2022-01-20 01:00 | - | - | - | - | 20.0 | 14.4 |
| 2022-01-20 00:00 | 41.8 | 41.4 | 7.5 | - | 24.8 | 17.2 |
| 2022-01-19 23:00 | 41.0 | 53.1 | 7.5 | - | 27.1 | 15.6 |
| 2022-01-19 22:00 | 52.8 | 51.4 | 7.5 | - | 32.7 | 19.1 |
| 2022-01-19 21:00 | 68.8 | 57.3 | 8.9 | - | 39.2 | 26.6 |
| 2022-01-19 20:00 | 154.5 | 13.7 | 12.8 | - | 44.4 | 30.2 |
| 2022-01-19 19:00 | 145.0 | 38.8 | 14.1 | - | 45.8 | 29.7 |
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.
