Welcome to Environmental Protection Department Air Quality Health Index Website


Kwun Tong
Date TimeNO2O3SO2COPM10PM2.5
2023-02-08 05:0014.966.83.6-19.38.5
2023-02-08 04:00----21.411.8
2023-02-08 03:0017.264.03.4-19.910.3
2023-02-08 02:0022.962.13.5-21.714.3
2023-02-08 01:0030.1-3.1-24.917.0
2023-02-08 00:0034.245.63.8-26.519.7
2023-02-07 23:0048.135.73.9-29.723.3
2023-02-07 22:0041.146.33.8-31.126.5
2023-02-07 21:0033.459.33.8-28.023.5
2023-02-07 20:0037.545.73.9-17.312.3
2023-02-07 19:0064.415.04.6-21.613.6
2023-02-07 18:0067.613.85.2-19.511.0
2023-02-07 17:0059.821.14.8-21.212.3
2023-02-07 16:0051.030.44.6---
2023-02-07 15:0047.233.64.4---
2023-02-07 14:0051.926.34.9-16.210.3
2023-02-07 13:0041.529.54.3-14.110.0
2023-02-07 12:0038.325.43.8-12.49.8
2023-02-07 11:0038.824.23.6-13.110.4
2023-02-07 10:0046.019.04.0-15.212.3
2023-02-07 09:0056.08.85.3-19.413.0
2023-02-07 08:0065.23.95.1-17.611.7
2023-02-07 07:0040.023.44.2-20.313.4
2023-02-07 06:0020.141.83.6-22.614.8
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: 05:07 08-02-2023