Welcome to Environmental Protection Department Air Quality Health Index Website


Tung Chung
Date TimeNO2O3SO2COPM10PM2.5
2021-12-04 09:0060.526.64.8114.718.312.2
2021-12-04 08:0061.721.84.3101.213.99.1
2021-12-04 07:0045.740.44.232.716.411.2
2021-12-04 06:0026.760.54.926.517.311.7
2021-12-04 05:0015.873.55.523.420.614.2
2021-12-04 04:0014.978.36.738.423.516.3
2021-12-04 03:0023.663.96.074.319.212.1
2021-12-04 02:0030.556.37.572.720.913.8
2021-12-04 01:00----22.314.9
2021-12-04 00:0059.130.83.9124.025.414.2
2021-12-03 23:0053.847.44.8117.625.312.9
2021-12-03 22:0055.742.83.5118.524.712.7
2021-12-03 21:0062.332.73.1119.323.211.8
2021-12-03 20:0060.939.13.1104.225.811.4
2021-12-03 19:0039.872.03.336.130.412.1
2021-12-03 18:0061.158.63.542.841.415.1
2021-12-03 17:0052.573.52.541.444.017.2
2021-12-03 16:0050.380.43.587.947.720.0
2021-12-03 15:0048.695.23.698.748.519.2
2021-12-03 14:0056.186.34.399.847.519.6
2021-12-03 13:0057.066.15.6113.840.814.0
2021-12-03 12:0048.955.34.030.339.914.6
2021-12-03 11:0052.348.14.587.537.816.2
2021-12-03 10:0060.434.85.2120.834.919.1
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 04-12-2021