Welcome to Environmental Protection Department Air Quality Health Index Website


Kwai Chung
Date TimeNO2O3SO2COPM10PM2.5
2023-12-08 07:0082.224.57.5-26.215.5
2023-12-08 06:0051.357.07.2-22.511.9
2023-12-08 05:0038.568.47.2-22.612.0
2023-12-08 04:0031.077.56.9-20.39.7
2023-12-08 03:0031.079.76.4-19.29.6
2023-12-08 02:0039.871.76.4-21.812.3
2023-12-08 01:0071.048.06.9-21.111.1
2023-12-08 00:0086.631.27.1-22.913.0
2023-12-07 23:00105.416.37.3-19.610.2
2023-12-07 22:00101.026.77.0-23.212.2
2023-12-07 21:00113.215.27.5-23.610.8
2023-12-07 20:00116.315.57.9-25.39.7
2023-12-07 19:00121.518.69.1-25.210.6
2023-12-07 18:00103.440.68.1-28.511.1
2023-12-07 17:0086.455.68.3-23.311.0
2023-12-07 16:0069.872.27.9---
2023-12-07 15:0060.181.07.9---
2023-12-07 14:0050.180.47.3---
2023-12-07 13:0037.879.77.0---
2023-12-07 12:0063.349.78.2-25.18.4
2023-12-07 11:0079.430.49.3-27.511.5
2023-12-07 10:0094.018.410.6-21.510.4
2023-12-07 09:0080.623.99.1-15.19.0
2023-12-07 08:0074.327.28.8-15.210.8
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: 07:07 08-12-2023