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Past 24 Hours Pollutant Concentration Summary

Causeway Bay
Date TimeNO2O3SO2COPM10PM2.5
2024-03-29 12:00121.08.910.61,109.470.643.8
2024-03-29 11:00103.17.310.1965.962.941.3
2024-03-29 10:0095.67.08.6839.161.939.3
2024-03-29 09:0080.26.47.3891.162.037.2
2024-03-29 08:0081.17.45.8782.254.732.5
2024-03-29 07:0077.67.25.8748.848.027.2
2024-03-29 06:0062.716.73.5648.747.226.1
2024-03-29 05:00-10.6--48.829.6
2024-03-29 04:0060.216.23.4768.443.125.1
2024-03-29 03:0057.421.23.0685.045.327.6
2024-03-29 02:0064.625.03.8634.043.424.2
2024-03-29 01:0089.46.76.5916.850.928.0
2024-03-29 00:0096.16.012.7816.053.029.3
2024-03-28 23:0092.08.46.9799.758.032.9
2024-03-28 22:00101.18.06.9965.761.537.9
2024-03-28 21:0099.58.96.8953.169.943.1
2024-03-28 20:00122.68.68.61,006.675.947.1
2024-03-28 19:00144.07.412.91,052.084.941.6
2024-03-28 18:00132.98.010.8996.678.141.7
2024-03-28 17:00127.38.110.3960.151.828.2
2024-03-28 16:00125.09.57.8896.756.431.6
2024-03-28 15:00116.18.38.8846.276.840.9
2024-03-28 14:00113.410.39.4841.571.345.4
2024-03-28 13:00129.411.39.1784.349.127.3
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.