Welcome to Environmental Protection Department Air Quality Health Index Website


Tung Chung
Date TimeNO2O3SO2COPM10PM2.5
2021-06-21 05:002.367.94.4135.318.810.5
2021-06-21 04:000.466.44.5117.318.910.4
2021-06-21 03:000.568.84.5116.521.813.2
2021-06-21 02:002.064.14.5116.520.211.4
2021-06-21 01:00----19.39.8
2021-06-21 00:002.361.54.4116.420.812.0
2021-06-20 23:001.665.44.3123.418.510.0
2021-06-20 22:003.061.94.4131.220.912.2
2021-06-20 21:002.260.24.3131.316.77.9
2021-06-20 20:002.461.64.5119.017.49.8
2021-06-20 19:002.659.64.4126.218.211.3
2021-06-20 18:004.058.54.8116.314.87.9
2021-06-20 17:006.758.14.7117.615.17.7
2021-06-20 16:005.565.04.9135.817.79.3
2021-06-20 15:005.169.24.9126.721.212.4
2021-06-20 14:007.870.14.7147.822.114.3
2021-06-20 13:008.161.54.8138.020.512.5
2021-06-20 12:008.361.04.6143.417.29.8
2021-06-20 11:0011.458.54.6207.817.09.7
2021-06-20 10:007.760.24.5129.517.410.8
2021-06-20 09:009.952.94.5126.317.09.8
2021-06-20 08:0010.349.54.5133.216.78.9
2021-06-20 07:008.951.94.1169.718.010.8
2021-06-20 06:005.857.84.4130.017.29.0
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 21-06-2021