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Past 24 Hours Pollutant Concentration Summary

Southern
Date TimeNO2O3SO2COPM10PM2.5
2021-06-24 02:0027.117.73.7248.917.48.1
2021-06-24 01:0036.57.93.9283.813.76.7
2021-06-24 00:0030.813.03.4296.314.31.6
2021-06-23 23:0023.024.73.0289.69.3-
2021-06-23 22:0038.426.23.3336.99.83.3
2021-06-23 21:0032.933.93.3299.513.61.5
2021-06-23 20:0020.766.23.4221.29.72.6
2021-06-23 19:0024.866.13.2241.78.42.4
2021-06-23 18:0055.234.73.2319.29.45.4
2021-06-23 17:0057.930.93.4265.511.87.9
2021-06-23 16:0049.237.33.9248.414.55.3
2021-06-23 15:0059.928.43.6279.014.05.5
2021-06-23 14:0034.551.33.1234.817.411.8
2021-06-23 13:0028.663.33.8232.917.112.5
2021-06-23 12:0057.230.77.0304.712.39.1
2021-06-23 11:0063.716.07.2444.711.610.2
2021-06-23 10:0045.014.55.3413.020.510.4
2021-06-23 09:0063.47.25.9601.023.911.9
2021-06-23 08:0068.88.46.7611.422.012.6
2021-06-23 07:0023.719.83.9356.321.410.5
2021-06-23 06:008.931.73.3260.915.58.3
2021-06-23 05:009.132.93.3245.39.98.9
2021-06-23 04:0017.930.73.5266.412.07.6
2021-06-23 03:0034.817.43.8288.817.33.2
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.