Welcome to Environmental Protection Department Air Quality Health Index Website


Kwai Chung
Date TimeNO2O3SO2COPM10PM2.5
2022-06-29 18:0033.327.79.8-6.44.3
2022-06-29 17:0035.422.79.6-5.44.3
2022-06-29 16:0032.327.29.6-6.54.4
2022-06-29 15:0023.732.69.6-9.24.7
2022-06-29 14:0028.731.99.7-4.52.9
2022-06-29 13:0020.735.09.6-8.05.4
2022-06-29 12:0029.929.810.1-10.55.4
2022-06-29 11:0028.123.610.3-7.14.1
2022-06-29 10:0026.518.810.0-8.34.9
2022-06-29 09:0029.114.010.2-7.13.9
2022-06-29 08:0032.111.110.1-4.72.1
2022-06-29 07:0015.218.99.2-5.83.9
2022-06-29 06:008.929.19.5-6.24.3
2022-06-29 05:009.831.99.3-3.62.1
2022-06-29 04:00----4.93.6
2022-06-29 03:0010.836.79.4-6.96.2
2022-06-29 02:0017.136.19.9-6.05.6
2022-06-29 01:0021.6-10.0-6.04.8
2022-06-29 00:0033.217.510.5-4.23.4
2022-06-28 23:0040.519.611.0-5.44.4
2022-06-28 22:0059.09.916.9-10.67.8
2022-06-28 21:0076.45.219.2-14.09.2
2022-06-28 20:0069.38.116.2-8.95.6
2022-06-28 19:0063.89.016.8-10.46.6
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: 18:07 29-06-2022