Causeway Bay
Date TimeNO2O3SO2COPM10PM2.5
2024-04-27 05:0020.428.02.7475.818.08.7
2024-04-27 04:0016.731.02.6469.525.111.4
2024-04-27 03:0023.124.22.9727.522.111.4
2024-04-27 02:0029.513.53.6613.221.210.2
2024-04-27 01:0035.815.23.7656.031.116.4
2024-04-27 00:0031.617.63.4604.226.816.1
2024-04-26 23:0031.316.93.8434.836.122.0
2024-04-26 22:0037.416.13.7450.340.227.1
2024-04-26 21:0055.610.66.8687.237.826.8
2024-04-26 20:0053.28.95.8829.239.526.2
2024-04-26 19:0044.313.75.1508.928.918.6
2024-04-26 18:0066.28.66.7709.335.722.3
2024-04-26 17:0055.212.15.4581.932.220.8
2024-04-26 16:0059.510.26.0632.029.318.6
2024-04-26 15:0055.811.65.2541.527.418.1
2024-04-26 14:0059.710.06.9582.836.728.1
2024-04-26 13:00100.47.48.11,000.345.532.8
2024-04-26 12:0099.713.46.3878.734.223.9
2024-04-26 11:00108.18.35.8875.328.920.4
2024-04-26 10:0066.310.05.2691.628.321.0
2024-04-26 09:0032.215.73.6376.119.514.2
2024-04-26 08:0043.713.44.7429.816.09.2
2024-04-26 07:0036.510.54.1596.922.411.9
2024-04-26 06:0036.818.93.81,949.520.510.8
Remarks:

(1) Time shown is in Hong Kong time.

(2) Concentration shown is in microgram per cubic metre (µg/m3).

(3) Abbreviation:
NO2 - nitrogen dioxide, O3 - ozone,
SO2 - sulphur dioxide, CO - carbon monoxide,
PM10 - respirable suspended particulates,
PM2.5 - fine suspended particulates

(4) The pollutant concentration is based on real time data taken directly from EPD's Air Quality Monitoring Network.

Last revision date: 05:07 27-04-2024