Welcome to Environmental Protection Department Air Quality Health Index Website


Southern
Date TimeNO2O3SO2COPM10PM2.5
2022-10-03 06:009.539.03.2124.519.18.7
2022-10-03 05:00-45.63.0109.313.29.3
2022-10-03 04:005.947.33.3129.812.67.1
2022-10-03 03:0010.040.73.195.518.24.7
2022-10-03 02:008.043.43.0111.415.05.6
2022-10-03 01:009.534.53.0110.916.46.5
2022-10-03 00:0011.930.12.8126.320.44.4
2022-10-02 23:0013.930.12.9137.423.64.5
2022-10-02 22:0010.038.42.9132.123.06.6
2022-10-02 21:0013.243.22.7150.917.26.3
2022-10-02 20:0015.340.32.6142.39.36.6
2022-10-02 19:0012.745.02.5126.19.88.1
2022-10-02 18:0010.636.51.9107.515.89.0
2022-10-02 17:009.342.31.3114.615.45.6
2022-10-02 16:0011.747.60.9141.015.41.7
2022-10-02 15:00-48.5--17.96.4
2022-10-02 14:007.848.0-132.018.49.0
2022-10-02 13:006.047.3-99.215.65.4
2022-10-02 12:006.750.7-103.417.78.2
2022-10-02 11:009.548.5-115.422.910.7
2022-10-02 10:0010.747.3-118.119.59.8
2022-10-02 09:0012.744.7-116.616.411.4
2022-10-02 08:0011.845.3-112.518.06.9
2022-10-02 07:0013.147.3-106.820.23.2
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: 06:07 03-10-2022