Central/Western
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2021-06-24 19:00 | 87.8 | 9.4 | 5.0 | - | 10.1 | 8.5 |
| 2021-06-24 18:00 | 62.3 | 27.3 | 3.9 | - | 6.8 | 5.2 |
| 2021-06-24 17:00 | 54.1 | 32.9 | 4.0 | - | 6.9 | 5.9 |
| 2021-06-24 16:00 | 54.0 | 36.8 | 4.0 | - | 8.3 | 7.6 |
| 2021-06-24 15:00 | 66.8 | 28.2 | 3.2 | - | 7.7 | 6.7 |
| 2021-06-24 14:00 | 58.3 | 37.4 | 3.3 | - | 10.0 | 8.9 |
| 2021-06-24 13:00 | 43.2 | 52.3 | 3.4 | - | 13.7 | 9.9 |
| 2021-06-24 12:00 | 44.9 | 45.3 | 3.7 | - | 14.2 | 9.2 |
| 2021-06-24 11:00 | 42.7 | 45.5 | 3.7 | - | 12.9 | 9.0 |
| 2021-06-24 10:00 | 50.8 | 34.6 | 4.0 | - | 10.4 | 8.0 |
| 2021-06-24 09:00 | 41.8 | 38.5 | 3.2 | - | 8.7 | 6.1 |
| 2021-06-24 08:00 | 33.6 | 42.2 | 3.5 | - | 10.0 | 6.9 |
| 2021-06-24 07:00 | 22.2 | 44.3 | 3.7 | - | 9.3 | 5.6 |
| 2021-06-24 06:00 | 31.5 | 31.8 | 4.2 | - | 7.6 | 4.7 |
| 2021-06-24 05:00 | 28.4 | 35.3 | 4.0 | - | 6.2 | 4.0 |
| 2021-06-24 04:00 | 25.7 | 40.0 | 4.3 | - | 7.3 | 5.2 |
| 2021-06-24 03:00 | 32.7 | 37.6 | 4.9 | - | 6.8 | 5.4 |
| 2021-06-24 02:00 | 48.6 | 25.2 | 4.9 | - | 6.2 | 4.9 |
| 2021-06-24 01:00 | 30.1 | 42.6 | 4.8 | - | 9.8 | 7.1 |
| 2021-06-24 00:00 | 74.6 | - | 4.1 | - | 9.2 | 6.9 |
| 2021-06-23 23:00 | 32.0 | 42.8 | 3.1 | - | 9.0 | 7.3 |
| 2021-06-23 22:00 | 48.2 | 33.3 | 3.9 | - | 10.1 | 8.5 |
| 2021-06-23 21:00 | 57.4 | 24.5 | 4.6 | - | 8.2 | 6.9 |
| 2021-06-23 20:00 | - | 43.2 | - | - | 8.1 | 6.6 |
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.
