Central/Western
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2023-03-27 21:00 | 36.2 | 33.5 | 1.3 | - | 5.5 | 5.3 |
| 2023-03-27 20:00 | 46.9 | 30.3 | 1.4 | - | 9.7 | 8.7 |
| 2023-03-27 19:00 | 43.6 | 42.3 | 1.6 | - | 15.3 | 12.5 |
| 2023-03-27 18:00 | 64.4 | 22.9 | 1.7 | - | 14.8 | 10.8 |
| 2023-03-27 17:00 | 66.9 | 25.5 | 1.5 | - | 8.3 | 4.8 |
| 2023-03-27 16:00 | 46.7 | 56.9 | 1.4 | - | 10.1 | 3.7 |
| 2023-03-27 15:00 | 42.7 | 70.6 | 1.9 | - | 17.6 | 8.0 |
| 2023-03-27 14:00 | - | 74.1 | 2.0 | - | 19.9 | 9.6 |
| 2023-03-27 13:00 | - | 69.6 | 2.3 | - | 17.1 | 6.2 |
| 2023-03-27 12:00 | - | 70.9 | 2.2 | - | 21.2 | 8.4 |
| 2023-03-27 11:00 | - | 64.0 | 1.9 | - | 19.2 | 5.6 |
| 2023-03-27 10:00 | 42.0 | 59.9 | 1.4 | - | 17.1 | 4.4 |
| 2023-03-27 09:00 | 40.7 | 60.6 | 1.4 | - | 17.7 | 4.6 |
| 2023-03-27 08:00 | 27.3 | 73.1 | 1.5 | - | 19.5 | 7.9 |
| 2023-03-27 07:00 | 12.3 | 88.2 | 1.3 | - | 16.1 | 6.8 |
| 2023-03-27 06:00 | 8.2 | 95.1 | 1.2 | - | 8.8 | 3.6 |
| 2023-03-27 05:00 | 6.5 | 91.8 | 1.2 | - | 3.6 | 3.0 |
| 2023-03-27 04:00 | 8.9 | 76.5 | 1.1 | - | 4.6 | 3.7 |
| 2023-03-27 03:00 | 9.4 | 73.1 | 1.5 | - | 3.2 | - |
| 2023-03-27 02:00 | - | 63.5 | - | - | 3.7 | - |
| 2023-03-27 01:00 | 13.7 | 64.2 | 1.1 | - | 6.8 | 5.5 |
| 2023-03-27 00:00 | 20.0 | 56.4 | 1.2 | - | 9.2 | 8.8 |
| 2023-03-26 23:00 | 22.8 | 47.1 | 1.3 | - | 7.0 | - |
| 2023-03-26 22:00 | 22.0 | 52.7 | 1.3 | - | 5.3 | - |
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.
