Central
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2023-02-05 18:00 | 48.1 | 32.8 | 1.3 | 513.2 | 7.8 | - |
| 2023-02-05 17:00 | 62.1 | 24.9 | 1.7 | 559.4 | 11.3 | - |
| 2023-02-05 16:00 | 61.9 | 24.4 | 1.8 | 531.4 | 11.4 | - |
| 2023-02-05 15:00 | 51.0 | 32.2 | 1.5 | 531.0 | 14.2 | - |
| 2023-02-05 14:00 | 46.3 | 40.1 | 1.2 | 505.0 | 14.4 | - |
| 2023-02-05 13:00 | 37.8 | 42.5 | 1.3 | 509.1 | 17.7 | - |
| 2023-02-05 12:00 | 32.8 | 39.1 | 1.2 | 523.8 | 20.0 | - |
| 2023-02-05 11:00 | 40.6 | 29.7 | 1.4 | 570.5 | 21.8 | - |
| 2023-02-05 10:00 | 39.0 | 26.9 | 1.3 | 519.0 | 24.7 | - |
| 2023-02-05 09:00 | 39.0 | 27.7 | 1.6 | 474.3 | 21.5 | - |
| 2023-02-05 08:00 | 39.7 | 29.5 | 1.5 | 437.3 | 24.1 | 24.1 |
| 2023-02-05 07:00 | 37.8 | 32.3 | 1.4 | 415.9 | 20.3 | - |
| 2023-02-05 06:00 | 27.1 | 43.0 | 1.3 | 431.5 | 22.9 | - |
| 2023-02-05 05:00 | 21.0 | 50.8 | 1.5 | 410.5 | 22.1 | - |
| 2023-02-05 04:00 | 18.7 | 53.5 | 2.0 | 408.5 | 22.9 | - |
| 2023-02-05 03:00 | - | 53.9 | - | - | 27.8 | - |
| 2023-02-05 02:00 | 22.5 | 54.3 | 1.6 | 451.8 | 27.6 | - |
| 2023-02-05 01:00 | 30.6 | 50.3 | 1.8 | 461.2 | 36.0 | 33.2 |
| 2023-02-05 00:00 | 39.2 | 46.3 | 1.6 | 451.9 | 30.1 | 27.1 |
| 2023-02-04 23:00 | 42.1 | 50.9 | 1.8 | 450.0 | 26.6 | 25.0 |
| 2023-02-04 22:00 | 52.9 | 45.7 | 1.9 | 553.6 | 32.7 | 30.6 |
| 2023-02-04 21:00 | 63.5 | 38.1 | 2.1 | 575.3 | 32.1 | 30.5 |
| 2023-02-04 20:00 | 68.1 | 34.9 | 2.3 | 577.0 | 22.7 | 21.8 |
| 2023-02-04 19:00 | 78.1 | 28.0 | 2.4 | 544.8 | 24.0 | - |
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.
