Welcome to Environmental Protection Department Air Quality Health Index Website


Eastern
Date TimeNO2O3SO2COPM10PM2.5
2022-05-26 09:0052.826.90.2-15.412.4
2022-05-26 08:0050.822.60.3-10.1-
2022-05-26 07:0039.730.30.7-11.19.7
2022-05-26 06:0033.836.20.5-14.08.5
2022-05-26 05:0027.540.20.3-18.311.9
2022-05-26 04:0022.248.10.6-19.012.4
2022-05-26 03:0027.047.41.0-16.89.0
2022-05-26 02:0026.153.80.9-17.58.2
2022-05-26 01:0029.556.00.9-15.48.7
2022-05-26 00:0043.040.40.8-12.19.6
2022-05-25 23:0039.452.40.9-10.08.5
2022-05-25 22:0038.460.30.5-13.58.3
2022-05-25 21:0039.960.80.5-16.410.5
2022-05-25 20:0037.569.10.5-15.212.9
2022-05-25 19:0056.956.80.4-15.411.2
2022-05-25 18:0057.862.80.3-16.24.8
2022-05-25 17:0058.957.80.4-13.61.4
2022-05-25 16:0052.656.80.4-11.75.2
2022-05-25 15:0050.852.60.4-16.38.3
2022-05-25 14:0046.256.70.3-18.18.1
2022-05-25 13:0045.949.10.2-19.313.3
2022-05-25 12:00----19.013.9
2022-05-25 11:00----15.410.8
2022-05-25 10:0051.032.90.3-11.88.8
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: 09:07 26-05-2022