Past 24 Hours Pollutant Concentration Summary
Causeway Bay
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2020-06-05 05:00 | 18.4 | 22.9 | 2.7 | 383.0 | 0.9 | 0.6 |
| 2020-06-05 04:00 | 22.0 | 21.0 | 3.0 | 878.4 | 3.1 | 0.7 |
| 2020-06-05 03:00 | 25.5 | 17.2 | 3.1 | 496.8 | 11.5 | 6.6 |
| 2020-06-05 02:00 | 26.0 | 20.3 | 3.6 | 497.9 | 8.1 | 4.1 |
| 2020-06-05 01:00 | 34.6 | 14.6 | 3.5 | 455.7 | 8.3 | 4.1 |
| 2020-06-05 00:00 | 36.8 | 18.4 | 3.6 | 384.5 | 12.0 | 6.8 |
| 2020-06-04 23:00 | 33.8 | 15.1 | 3.3 | 392.1 | 21.4 | 14.7 |
| 2020-06-04 22:00 | 28.6 | 19.6 | 2.9 | 412.7 | 14.3 | 9.5 |
| 2020-06-04 21:00 | 33.2 | 16.0 | 3.7 | 454.5 | 23.3 | 15.4 |
| 2020-06-04 20:00 | 51.2 | 11.4 | 5.6 | 593.4 | 26.8 | 17.4 |
| 2020-06-04 19:00 | 51.2 | 13.5 | 5.1 | 512.5 | 26.2 | 16.9 |
| 2020-06-04 18:00 | 49.2 | 13.6 | 5.7 | 516.6 | 25.1 | 16.0 |
| 2020-06-04 17:00 | 74.2 | 8.2 | 6.5 | 563.4 | 25.3 | 15.0 |
| 2020-06-04 16:00 | 59.6 | 21.2 | 5.7 | 535.0 | 22.8 | 13.3 |
| 2020-06-04 15:00 | 96.6 | 7.8 | 7.9 | 620.6 | 22.2 | 12.4 |
| 2020-06-04 14:00 | 62.5 | 16.8 | 5.2 | 490.8 | 23.4 | 13.8 |
| 2020-06-04 13:00 | 71.3 | 11.8 | 7.2 | 543.0 | 20.1 | 11.5 |
| 2020-06-04 12:00 | 63.5 | 13.3 | 5.8 | 508.7 | 21.6 | 10.3 |
| 2020-06-04 11:00 | 66.4 | 10.0 | 6.3 | 610.2 | 31.3 | 17.7 |
| 2020-06-04 10:00 | 65.9 | 8.2 | 8.1 | 552.8 | 22.4 | 11.8 |
| 2020-06-04 09:00 | 63.6 | 10.7 | 6.4 | 523.5 | 19.4 | 11.0 |
| 2020-06-04 08:00 | 46.3 | 12.4 | 5.0 | 457.9 | 22.4 | 15.0 |
| 2020-06-04 07:00 | 36.3 | 16.1 | 3.7 | 405.6 | 2.6 | 1.9 |
| 2020-06-04 06:00 | 29.1 | 16.9 | 3.7 | 447.3 | 8.2 | 4.2 |
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.
