Past 24 Hours Pollutant Concentration Summary
Causeway Bay
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2020-08-09 20:00 | 65.5 | 12.3 | 7.0 | 683.1 | 26.2 | 14.8 |
| 2020-08-09 19:00 | 64.8 | 15.8 | 6.5 | 397.6 | 21.5 | 12.5 |
| 2020-08-09 18:00 | 66.0 | 18.0 | 7.2 | 457.0 | 25.2 | 16.2 |
| 2020-08-09 17:00 | 66.3 | 20.0 | 7.2 | 390.2 | 21.8 | 13.2 |
| 2020-08-09 16:00 | 42.0 | 32.4 | 6.9 | 358.9 | 27.8 | 17.4 |
| 2020-08-09 15:00 | 64.5 | 14.2 | 8.2 | 455.7 | 23.5 | 14.5 |
| 2020-08-09 14:00 | 58.7 | 13.6 | 8.8 | 437.4 | 24.6 | 15.2 |
| 2020-08-09 13:00 | 74.2 | 11.0 | 8.2 | 675.9 | 23.4 | 15.4 |
| 2020-08-09 12:00 | 67.7 | 10.1 | 9.3 | 648.1 | 21.4 | 12.3 |
| 2020-08-09 11:00 | 59.9 | 8.9 | 8.1 | 532.2 | 13.0 | 7.0 |
| 2020-08-09 10:00 | 59.7 | 8.8 | 9.0 | 632.3 | 17.2 | 10.7 |
| 2020-08-09 09:00 | 53.6 | 6.2 | 9.7 | 484.7 | 23.3 | 15.5 |
| 2020-08-09 08:00 | 42.1 | 5.9 | 8.3 | 502.5 | 15.3 | 7.2 |
| 2020-08-09 07:00 | 31.8 | 6.0 | 6.2 | 447.9 | 13.6 | 4.8 |
| 2020-08-09 06:00 | 19.0 | 8.8 | 4.8 | 709.2 | 10.4 | 5.1 |
| 2020-08-09 05:00 | 21.0 | 9.4 | 5.2 | 400.8 | 8.2 | 4.1 |
| 2020-08-09 04:00 | - | - | - | - | 5.4 | 2.4 |
| 2020-08-09 03:00 | 23.6 | 9.9 | 4.7 | 394.2 | 14.3 | 8.9 |
| 2020-08-09 02:00 | 26.2 | 17.3 | 4.4 | 375.1 | 18.4 | 11.5 |
| 2020-08-09 01:00 | 37.8 | 16.5 | 5.3 | 496.3 | 16.5 | 9.4 |
| 2020-08-09 00:00 | 44.8 | 13.1 | 5.5 | 437.3 | 26.4 | 15.7 |
| 2020-08-08 23:00 | 41.8 | 13.5 | 5.2 | 465.0 | 16.3 | 9.2 |
| 2020-08-08 22:00 | 50.6 | 13.1 | 6.0 | 865.1 | 17.1 | 9.4 |
| 2020-08-08 21:00 | 58.2 | 11.6 | 6.7 | 682.5 | 23.1 | 13.0 |
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.
