EPD

Back Home

Past 24 Hours Pollutant Concentration Summary

Mong Kok
Date TimeNO2O3SO2COPM10PM2.5
2021-12-02 08:0064.336.04.3466.827.911.9
2021-12-02 07:0051.744.84.1447.927.211.4
2021-12-02 06:0036.758.53.8456.226.410.7
2021-12-02 05:0025.667.73.7421.328.311.6
2021-12-02 04:0027.168.13.5449.527.311.0
2021-12-02 03:0028.969.73.8400.428.511.3
2021-12-02 02:0022.276.33.9384.930.711.6
2021-12-02 01:0034.967.14.2404.231.512.0
2021-12-02 00:0059.146.94.2463.833.312.4
2021-12-01 23:0053.754.43.8461.934.913.7
2021-12-01 22:0053.558.44.3483.734.713.8
2021-12-01 21:0077.640.94.5529.039.617.1
2021-12-01 20:0084.535.74.5571.140.216.4
2021-12-01 19:0088.439.94.0524.638.514.4
2021-12-01 18:0098.436.64.2537.339.913.8
2021-12-01 17:0085.444.33.5491.340.114.5
2021-12-01 16:0071.859.53.4479.739.114.5
2021-12-01 15:0071.364.33.0475.835.113.6
2021-12-01 14:0069.257.13.4480.931.013.0
2021-12-01 13:0068.849.23.4458.030.211.8
2021-12-01 12:0064.746.92.8453.432.912.6
2021-12-01 11:0051.448.42.9442.034.114.1
2021-12-01 10:0056.746.83.4432.430.312.8
2021-12-01 09:0064.039.43.5474.126.211.1
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.