Eastern
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2021-10-22 04:00 | 15.9 | 46.8 | 0.6 | - | 9.2 | 3.7 |
| 2021-10-22 03:00 | 21.0 | 45.5 | 0.5 | - | 9.4 | 6.2 |
| 2021-10-22 02:00 | 26.6 | 42.7 | 0.9 | - | 13.7 | 8.5 |
| 2021-10-22 01:00 | 31.3 | 40.1 | 0.9 | - | 14.0 | 7.3 |
| 2021-10-22 00:00 | 41.1 | 34.8 | 1.6 | - | 19.0 | 5.8 |
| 2021-10-21 23:00 | 37.3 | 38.0 | 0.9 | - | 27.0 | 10.6 |
| 2021-10-21 22:00 | 39.6 | 36.9 | 1.2 | - | 28.4 | 14.1 |
| 2021-10-21 21:00 | 48.7 | 30.7 | 1.4 | - | 24.7 | 14.1 |
| 2021-10-21 20:00 | 63.6 | 19.1 | 1.5 | - | 19.9 | 7.5 |
| 2021-10-21 19:00 | 66.4 | 20.4 | 0.6 | - | 24.7 | 6.1 |
| 2021-10-21 18:00 | 72.1 | 16.8 | 0.4 | - | 39.1 | 11.4 |
| 2021-10-21 17:00 | 69.2 | 20.5 | 0.4 | - | 36.9 | 12.8 |
| 2021-10-21 16:00 | 66.1 | 23.0 | 0.6 | - | 24.0 | 11.8 |
| 2021-10-21 15:00 | 64.1 | 28.8 | 0.5 | - | 22.5 | 14.5 |
| 2021-10-21 14:00 | 64.7 | 31.1 | 0.4 | - | 25.8 | 14.8 |
| 2021-10-21 13:00 | 55.7 | 47.8 | 0.5 | - | 25.5 | 11.5 |
| 2021-10-21 12:00 | 61.6 | 53.4 | 0.9 | - | 20.0 | 7.8 |
| 2021-10-21 11:00 | 59.6 | 47.4 | 0.8 | - | 17.2 | 6.9 |
| 2021-10-21 10:00 | 58.3 | 38.3 | 0.7 | - | 19.7 | 9.4 |
| 2021-10-21 09:00 | 53.5 | 40.8 | 0.6 | - | 20.5 | 10.1 |
| 2021-10-21 08:00 | 58.8 | 24.0 | 0.7 | - | 17.9 | 6.2 |
| 2021-10-21 07:00 | 40.5 | 34.3 | 0.8 | - | 15.7 | 3.8 |
| 2021-10-21 06:00 | 16.4 | 56.0 | 0.9 | - | 15.0 | 4.7 |
| 2021-10-21 05:00 | 13.8 | 62.1 | 1.0 | - | 13.9 | 6.4 |
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.
