Welcome to Environmental Protection Department Air Quality Health Index Website


Kwun Tong
Date TimeNO2O3SO2COPM10PM2.5
2021-10-22 05:0022.033.23.2-3.02.9
2021-10-22 04:00----4.93.0
2021-10-22 03:0021.143.12.4-6.93.0
2021-10-22 02:0029.435.42.5-9.83.9
2021-10-22 01:0027.341.42.5-11.97.8
2021-10-22 00:0042.331.92.7-11.18.0
2021-10-21 23:0029.044.72.6-10.1-
2021-10-21 22:0036.337.72.7-20.311.2
2021-10-21 21:0040.135.12.7-19.012.0
2021-10-21 20:0048.130.63.3-18.111.3
2021-10-21 19:0059.323.23.1-20.88.2
2021-10-21 18:0064.817.22.9-27.38.0
2021-10-21 17:0063.715.53.4-27.810.8
2021-10-21 16:0067.715.53.9-29.912.9
2021-10-21 15:0071.419.03.7-32.813.0
2021-10-21 14:0056.529.22.8-31.115.8
2021-10-21 13:0065.525.73.1-29.113.2
2021-10-21 12:0046.352.62.5-33.717.7
2021-10-21 11:0074.225.03.1-33.111.4
2021-10-21 10:0068.622.72.8-36.810.1
2021-10-21 09:0071.921.33.1-37.010.9
2021-10-21 08:0081.710.23.9-22.08.2
2021-10-21 07:0077.18.33.6-12.57.1
2021-10-21 06:0050.918.22.9-18.67.0
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 22-10-2021