EPD

Back Home

Past 24 Hours Pollutant Concentration Summary

Causeway Bay
Date TimeNO2O3SO2COPM10PM2.5
2019-09-16 03:0044.162.22.8675.132.520.5
2019-09-16 02:0066.343.53.5744.533.220.5
2019-09-16 01:0091.229.73.6942.935.724.5
2019-09-16 00:0093.427.54.4828.039.424.6
2019-09-15 23:0060.853.24.9745.133.219.5
2019-09-15 22:0049.373.92.8715.735.819.7
2019-09-15 21:0051.664.62.6742.638.621.7
2019-09-15 20:0058.768.21.8779.832.921.4
2019-09-15 19:0032.775.31.5637.430.917.6
2019-09-15 18:0016.480.51.8617.233.420.0
2019-09-15 17:0013.384.41.7560.532.414.4
2019-09-15 16:0020.371.11.8719.132.215.9
2019-09-15 15:0043.759.52.1679.635.220.1
2019-09-15 14:0064.841.92.8636.343.426.4
2019-09-15 13:0066.438.93.3839.445.228.8
2019-09-15 12:00106.011.45.0885.748.332.6
2019-09-15 11:00103.412.44.11,076.041.929.7
2019-09-15 10:0081.327.43.1849.531.624.8
2019-09-15 09:0083.027.52.7720.236.124.5
2019-09-15 08:0057.952.41.8663.940.528.0
2019-09-15 07:0057.748.63.0674.740.727.9
2019-09-15 06:0046.462.33.2618.935.425.0
2019-09-15 05:0041.455.53.2664.826.318.9
2019-09-15 04:0026.360.13.2579.125.417.7
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.