Causeway Bay
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2021-10-16 17:00 | 92.2 | 12.3 | 6.6 | 739.5 | 42.8 | 26.9 |
| 2021-10-16 16:00 | 111.3 | 10.7 | 7.1 | 819.1 | 46.1 | 28.7 |
| 2021-10-16 15:00 | 119.3 | 11.3 | 8.4 | 750.2 | 40.5 | 25.5 |
| 2021-10-16 14:00 | 105.4 | 14.3 | 6.0 | 608.0 | 48.0 | 31.7 |
| 2021-10-16 13:00 | 97.0 | 19.3 | 5.1 | 632.6 | 39.4 | 24.0 |
| 2021-10-16 12:00 | 95.8 | 17.1 | 5.7 | 708.6 | 47.4 | 30.5 |
| 2021-10-16 11:00 | 82.9 | 11.2 | 5.4 | 764.1 | 44.5 | 30.4 |
| 2021-10-16 10:00 | 66.4 | 9.6 | 5.6 | 887.6 | 35.8 | 22.3 |
| 2021-10-16 09:00 | 68.1 | 7.9 | 5.5 | 656.1 | 31.2 | 21.4 |
| 2021-10-16 08:00 | 60.6 | 8.8 | 3.8 | 604.0 | 25.5 | 15.1 |
| 2021-10-16 07:00 | 37.5 | 18.6 | 2.5 | 439.7 | 21.5 | 11.4 |
| 2021-10-16 06:00 | 32.9 | 24.1 | 2.3 | 709.4 | 25.2 | 14.8 |
| 2021-10-16 05:00 | 40.5 | 20.2 | 2.8 | 847.2 | 25.8 | 14.7 |
| 2021-10-16 04:00 | 38.5 | 21.5 | 2.7 | 510.7 | 19.5 | 10.3 |
| 2021-10-16 03:00 | 36.2 | 23.4 | 2.5 | 762.8 | 17.4 | 8.2 |
| 2021-10-16 02:00 | 40.1 | 21.0 | 3.1 | 516.4 | 18.9 | 9.8 |
| 2021-10-16 01:00 | 58.0 | 9.2 | 4.2 | 616.6 | 25.5 | 16.0 |
| 2021-10-16 00:00 | 63.4 | 7.2 | 4.9 | 527.7 | 22.7 | 14.9 |
| 2021-10-15 23:00 | 80.2 | 6.0 | 7.6 | 739.6 | 28.8 | 21.2 |
| 2021-10-15 22:00 | 60.7 | 7.4 | 6.7 | 823.7 | 36.2 | 29.5 |
| 2021-10-15 21:00 | 65.4 | 8.6 | 5.7 | 739.0 | 32.7 | 25.6 |
| 2021-10-15 20:00 | 58.8 | 10.4 | 5.0 | 831.0 | 30.3 | 24.2 |
| 2021-10-15 19:00 | 61.2 | 11.3 | 5.2 | 752.6 | 16.1 | 10.2 |
| 2021-10-15 18:00 | 60.0 | 9.0 | 6.3 | 685.1 | 23.3 | 16.1 |
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.
