Past 24 Hours Pollutant Concentration Summary

Central
Date TimeNO2O3SO2COPM10PM2.5
2019-10-19 18:00138.067.45.91,011.661.040.4
2019-10-19 17:00116.187.05.6959.961.139.4
2019-10-19 16:00113.489.55.81,047.857.837.3
2019-10-19 15:00111.792.66.41,497.956.236.4
2019-10-19 14:00108.2101.97.1942.355.537.7
2019-10-19 13:00102.299.18.0945.354.737.9
2019-10-19 12:00106.077.79.2919.951.234.9
2019-10-19 11:00132.254.010.2908.851.935.2
2019-10-19 10:00120.042.99.1953.054.435.9
2019-10-19 09:00117.138.78.5883.952.033.9
2019-10-19 08:00101.241.88.8869.156.636.4
2019-10-19 07:0096.639.27.9860.656.437.0
2019-10-19 06:0077.864.15.3871.147.832.1
2019-10-19 05:0044.2113.24.9820.647.932.9
2019-10-19 04:0048.2117.45.4832.150.234.4
2019-10-19 03:0082.286.45.7908.956.437.6
2019-10-19 02:00111.658.65.91,038.056.839.7
2019-10-19 01:00140.633.86.91,203.466.345.6
2019-10-19 00:00158.218.87.51,388.077.054.1
2019-10-18 23:00177.511.88.31,554.778.355.6
2019-10-18 22:00187.222.28.41,450.076.954.4
2019-10-18 21:00167.252.17.11,325.762.042.9
2019-10-18 20:00149.379.87.11,180.064.043.8
2019-10-18 19:00221.824.59.21,246.962.542.4
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:18:07 19-10-2019