Central/Western
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2021-06-15 20:00 | 19.9 | 40.1 | 5.6 | - | 15.1 | 6.4 |
| 2021-06-15 19:00 | 14.4 | 46.2 | 5.7 | - | 13.5 | 5.5 |
| 2021-06-15 18:00 | 14.8 | 47.1 | 5.7 | - | 16.0 | 7.3 |
| 2021-06-15 17:00 | 11.8 | 55.6 | 5.6 | - | 14.1 | 5.1 |
| 2021-06-15 16:00 | 13.7 | 63.3 | 5.7 | - | 15.5 | 6.6 |
| 2021-06-15 15:00 | 11.4 | 66.9 | 5.6 | - | 13.9 | 6.2 |
| 2021-06-15 14:00 | 14.0 | 64.4 | 5.2 | - | 10.6 | 6.7 |
| 2021-06-15 13:00 | 15.1 | 53.8 | 5.3 | - | 14.5 | 6.5 |
| 2021-06-15 12:00 | 36.2 | 36.7 | 14.0 | - | 12.8 | 5.3 |
| 2021-06-15 11:00 | 20.8 | 45.7 | 10.1 | - | 11.4 | 4.4 |
| 2021-06-15 10:00 | 19.1 | 39.1 | 6.7 | - | 11.3 | 5.9 |
| 2021-06-15 09:00 | 17.8 | 38.8 | 5.9 | - | 10.6 | 5.3 |
| 2021-06-15 08:00 | 12.9 | 43.0 | 4.6 | - | 9.3 | 4.4 |
| 2021-06-15 07:00 | 15.6 | 40.8 | 4.6 | - | 12.0 | 5.4 |
| 2021-06-15 06:00 | 7.0 | 49.2 | 4.4 | - | 10.9 | 5.5 |
| 2021-06-15 05:00 | 3.3 | 54.1 | 4.8 | - | 11.6 | 6.2 |
| 2021-06-15 04:00 | - | 50.7 | - | - | 9.8 | 4.9 |
| 2021-06-15 03:00 | 8.3 | 48.5 | 4.3 | - | 9.7 | 4.7 |
| 2021-06-15 02:00 | 3.5 | 53.6 | 4.1 | - | 10.1 | 4.6 |
| 2021-06-15 01:00 | 11.0 | 46.7 | 4.2 | - | 12.0 | 5.8 |
| 2021-06-15 00:00 | 14.4 | 41.8 | 4.2 | - | 8.3 | 4.2 |
| 2021-06-14 23:00 | 10.8 | 46.0 | 4.1 | - | 9.5 | 4.4 |
| 2021-06-14 22:00 | 14.2 | 42.2 | 4.0 | - | 11.2 | 5.3 |
| 2021-06-14 21:00 | 10.4 | 47.1 | 4.0 | - | 14.0 | 7.4 |
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.
