Welcome to Environmental Protection Department Air Quality Health Index Website


Eastern
Date TimeNO2O3SO2COPM10PM2.5
2022-10-06 02:0010.797.01.1-24.111.4
2022-10-06 01:0019.192.91.0-20.06.8
2022-10-06 00:0018.296.81.0-19.88.2
2022-10-05 23:0021.398.00.8-20.79.5
2022-10-05 22:0019.0100.81.2-24.112.2
2022-10-05 21:0020.4102.41.3-21.99.8
2022-10-05 20:0028.593.61.3-20.38.3
2022-10-05 19:0035.788.30.9-20.88.6
2022-10-05 18:0039.881.50.9-20.77.8
2022-10-05 17:0036.583.90.8-22.48.7
2022-10-05 16:0032.280.11.0-22.310.2
2022-10-05 15:0033.283.01.2-24.714.7
2022-10-05 14:0031.991.31.6-23.015.3
2022-10-05 13:00----23.215.8
2022-10-05 12:00----24.715.3
2022-10-05 11:0039.377.81.4-25.718.2
2022-10-05 10:0041.276.11.4-26.818.7
2022-10-05 09:0050.565.71.7-26.318.3
2022-10-05 08:0044.655.51.7-28.220.3
2022-10-05 07:0034.872.22.0-28.921.5
2022-10-05 06:0019.390.52.1-28.920.9
2022-10-05 05:0015.896.61.9-29.621.0
2022-10-05 04:0014.7100.71.8-30.822.0
2022-10-05 03:0022.394.61.8-27.120.2
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.

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Last revision date: 02:07 06-10-2022