Past 24 Hours Pollutant Concentration Summary

Central/Western
Date TimeNO2O3SO2COPM10PM2.5
2019-10-19 18:0066.7123.56.4-57.936.6
2019-10-19 17:0066.3131.56.7-56.435.8
2019-10-19 16:0042.2150.16.7-54.134.5
2019-10-19 15:0034.1162.97.2-50.733.1
2019-10-19 14:0034.0164.17.8-50.934.6
2019-10-19 13:0032.2159.98.2-50.334.7
2019-10-19 12:0032.4138.18.1-46.331.4
2019-10-19 11:0035.0123.88.0-49.732.1
2019-10-19 10:0059.779.49.5-49.631.7
2019-10-19 09:0062.964.99.7-51.334.4
2019-10-19 08:0046.280.29.9-50.434.0
2019-10-19 07:0030.790.89.0-54.537.0
2019-10-19 06:0020.396.56.2-49.733.4
2019-10-19 05:0014.0129.86.2-44.429.2
2019-10-19 04:0011.6146.76.7-46.730.2
2019-10-19 03:0011.9152.76.9-48.932.4
2019-10-19 02:0018.8142.47.1-51.035.4
2019-10-19 01:0061.8106.87.9-66.144.3
2019-10-19 00:00115.849.312.2-66.542.8
2019-10-18 23:0088.281.611.2-63.540.0
2019-10-18 22:0062.3122.29.8-66.241.9
2019-10-18 21:0072.8128.89.2-62.839.7
2019-10-18 20:0032.7179.88.7-59.240.0
2019-10-18 19:0049.0172.78.5-54.235.6
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