Central/Western
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2023-05-30 02:00 | - | 53.0 | - | - | 28.3 | 18.7 |
| 2023-05-30 01:00 | 41.5 | 48.2 | 5.0 | - | 25.1 | 17.4 |
| 2023-05-30 00:00 | 35.2 | 63.7 | 4.5 | - | 26.2 | 18.3 |
| 2023-05-29 23:00 | 24.9 | 105.2 | 4.6 | - | 33.8 | 24.5 |
| 2023-05-29 22:00 | 30.4 | 118.9 | 4.9 | - | 30.5 | 21.6 |
| 2023-05-29 21:00 | 25.3 | 114.0 | 4.1 | - | 28.6 | 21.0 |
| 2023-05-29 20:00 | 27.0 | 114.1 | 4.3 | - | 29.7 | 20.9 |
| 2023-05-29 19:00 | 28.2 | 131.8 | 4.0 | - | 32.8 | 22.6 |
| 2023-05-29 18:00 | 32.7 | 143.5 | 4.0 | - | 31.7 | 20.7 |
| 2023-05-29 17:00 | 31.5 | 145.5 | 3.6 | - | 30.8 | 19.5 |
| 2023-05-29 16:00 | 35.5 | 128.7 | 3.9 | - | 26.7 | 14.7 |
| 2023-05-29 15:00 | 32.6 | 113.1 | 4.6 | - | 27.5 | 13.3 |
| 2023-05-29 14:00 | 25.1 | 110.5 | 4.4 | - | 27.8 | 16.1 |
| 2023-05-29 13:00 | 31.9 | 93.0 | 5.3 | - | 26.2 | 15.5 |
| 2023-05-29 12:00 | 32.7 | 87.2 | 4.8 | - | 26.9 | 17.9 |
| 2023-05-29 11:00 | 37.5 | 70.6 | 4.4 | - | 28.3 | 17.1 |
| 2023-05-29 10:00 | 44.9 | 50.6 | 4.3 | - | 27.8 | 16.9 |
| 2023-05-29 09:00 | 49.6 | 42.5 | 5.2 | - | 25.9 | 15.1 |
| 2023-05-29 08:00 | 44.2 | 42.4 | 3.1 | - | 25.2 | 14.5 |
| 2023-05-29 07:00 | 27.4 | 56.2 | 2.7 | - | 25.2 | 14.1 |
| 2023-05-29 06:00 | 14.9 | 68.2 | 2.8 | - | 22.4 | 10.9 |
| 2023-05-29 05:00 | 11.9 | 74.0 | 3.1 | - | 22.5 | 10.1 |
| 2023-05-29 04:00 | 13.2 | 80.0 | 3.5 | - | 20.6 | 10.8 |
| 2023-05-29 03:00 | 17.5 | 77.6 | 3.2 | - | 17.7 | 12.2 |
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.
