Welcome to Environmental Protection Department Air Quality Health Index Website


Tung Chung
Date TimeNO2O3SO2COPM10PM2.5
2024-03-29 15:0040.0126.75.1518.554.134.9
2024-03-29 14:0077.295.87.6594.868.140.0
2024-03-29 13:0093.960.88.7691.960.737.3
2024-03-29 12:0081.652.77.7691.149.031.5
2024-03-29 11:0086.919.08.1621.752.234.2
2024-03-29 10:0084.09.67.4588.843.629.8
2024-03-29 09:0062.115.04.5578.538.727.0
2024-03-29 08:0065.12.83.5548.931.923.2
2024-03-29 07:0068.00.02.9524.124.116.9
2024-03-29 06:0069.60.03.0570.023.817.8
2024-03-29 05:0071.90.03.6555.727.421.3
2024-03-29 04:0071.40.03.6553.228.121.3
2024-03-29 03:0073.80.03.3565.224.318.2
2024-03-29 02:0069.50.02.5484.726.820.7
2024-03-29 01:00----30.421.6
2024-03-29 00:0082.10.02.7538.528.019.2
2024-03-28 23:0087.70.02.4550.426.718.6
2024-03-28 22:0085.01.12.9591.127.118.0
2024-03-28 21:0093.02.62.8530.728.016.9
2024-03-28 20:0083.623.23.2474.630.016.5
2024-03-28 19:00103.216.14.7498.129.917.2
2024-03-28 18:0050.166.43.0399.027.917.6
2024-03-28 17:0049.661.83.4411.226.916.9
2024-03-28 16:0052.854.94.0413.937.719.3
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.

Last revision date: 15:07 29-03-2024