Past 24 Hours Pollutant Concentration Summary

Central/Western
Date TimeNO2O3SO2COPM10PM2.5
2019-02-22 20:00124.129.04.5-51.239.4
2019-02-22 19:0075.365.93.9-37.727.5
2019-02-22 18:0084.850.93.8-41.030.0
2019-02-22 17:0087.130.64.9-40.127.7
2019-02-22 16:0074.534.03.6-42.528.1
2019-02-22 15:0072.123.63.5-47.630.7
2019-02-22 14:0063.719.03.7-39.526.3
2019-02-22 13:0049.517.43.5-31.921.5
2019-02-22 12:0040.010.43.8-27.218.5
2019-02-22 11:0032.66.53.9-26.218.6
2019-02-22 10:0031.64.44.2-26.620.1
2019-02-22 09:0032.73.04.3-23.317.3
2019-02-22 08:0034.22.54.6-24.019.1
2019-02-22 07:0032.52.03.7-19.715.8
2019-02-22 06:0034.61.73.6-18.814.6
2019-02-22 05:0036.11.83.9-18.114.1
2019-02-22 04:0038.71.34.5-12.410.8
2019-02-22 03:0042.51.94.6-16.113.1
2019-02-22 02:0046.02.04.5-22.315.4
2019-02-22 01:0052.04.53.1-40.725.3
2019-02-22 00:0058.811.31.7-44.227.4
2019-02-21 23:0068.88.21.6-36.924.2
2019-02-21 22:0063.417.31.7-35.825.1
2019-02-21 21:0070.716.81.6-36.326.5
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.

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Last revision date:20:07 22-02-2019