Welcome to Environmental Protection Department Air Quality Health Index Website


Tung Chung
Date TimeNO2O3SO2COPM10PM2.5
2024-03-19 14:0054.881.36.8812.933.226.6
2024-03-19 13:0043.663.74.1744.518.815.3
2024-03-19 12:0040.832.92.6734.210.27.7
2024-03-19 11:0036.723.82.9741.45.54.2
2024-03-19 10:0022.128.32.7710.08.17.3
2024-03-19 09:0021.826.13.6644.512.411.7
2024-03-19 08:0041.426.82.7508.125.821.6
2024-03-19 07:0034.739.83.1473.728.921.2
2024-03-19 06:0027.646.44.1468.322.915.0
2024-03-19 05:0034.130.33.1449.519.612.2
2024-03-19 04:0033.527.23.2443.923.317.7
2024-03-19 03:0036.623.03.1436.720.416.0
2024-03-19 02:0040.128.72.9441.020.415.1
2024-03-19 01:00----18.513.1
2024-03-19 00:0049.340.04.0454.819.813.6
2024-03-18 23:0052.829.32.9494.924.417.3
2024-03-18 22:0048.141.43.4520.123.916.6
2024-03-18 21:0043.749.33.3443.126.317.1
2024-03-18 20:0038.759.51.6442.024.413.6
2024-03-18 19:0034.868.01.6432.121.710.5
2024-03-18 18:0036.065.11.1410.828.118.1
2024-03-18 17:0032.767.21.3405.928.017.3
2024-03-18 16:0042.959.52.4430.025.916.6
2024-03-18 15:0034.862.22.8448.719.412.8
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: 14:07 19-03-2024