Welcome to Environmental Protection Department Air Quality Health Index Website


Eastern
Date TimeNO2O3SO2COPM10PM2.5
2023-02-07 15:0037.756.40.6-12.08.1
2023-02-07 14:0039.856.80.5-11.28.0
2023-02-07 13:0034.456.60.8-16.712.1
2023-02-07 12:00----18.512.7
2023-02-07 11:00----18.012.2
2023-02-07 10:0064.824.20.8-15.010.4
2023-02-07 09:0059.226.90.7-10.48.6
2023-02-07 08:0059.023.00.4-9.76.9
2023-02-07 07:0040.936.81.0-16.410.9
2023-02-07 06:0028.153.01.4-19.113.1
2023-02-07 05:0017.562.30.6-14.610.5
2023-02-07 04:0016.665.20.7-13.810.9
2023-02-07 03:0018.062.00.7-13.910.6
2023-02-07 02:0023.257.60.8-16.711.6
2023-02-07 01:0027.258.10.6-17.710.9
2023-02-07 00:0034.056.70.5-25.614.8
2023-02-06 23:0035.257.70.7-30.016.0
2023-02-06 22:0033.861.50.9-28.214.5
2023-02-06 21:0033.463.81.4-26.412.6
2023-02-06 20:0036.963.91.7-27.412.7
2023-02-06 19:0047.155.91.3-23.813.2
2023-02-06 18:0049.253.51.1-20.510.5
2023-02-06 17:0052.550.80.9-17.58.7
2023-02-06 16:0047.556.01.0-17.19.5
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: 15:07 07-02-2023