Welcome to Environmental Protection Department Air Quality Health Index Website


Kwai Chung
Date TimeNO2O3SO2COPM10PM2.5
2022-01-23 01:0016.559.05.9-7.26.7
2022-01-23 00:0024.255.55.8-4.23.7
2022-01-22 23:0030.848.06.0-6.45.5
2022-01-22 22:0025.352.16.0-3.93.4
2022-01-22 21:0024.555.45.4-2.72.4
2022-01-22 20:0030.252.35.6-4.94.0
2022-01-22 19:0041.840.65.8-7.06.1
2022-01-22 18:0042.934.65.8-7.15.9
2022-01-22 17:0039.736.75.8-5.04.1
2022-01-22 16:0040.738.35.9-7.15.3
2022-01-22 15:0041.642.25.8-5.84.6
2022-01-22 14:0043.433.66.1-6.86.3
2022-01-22 13:0038.435.25.9-6.25.3
2022-01-22 12:0048.327.36.0-7.55.9
2022-01-22 11:0049.121.26.0-5.53.7
2022-01-22 10:0050.414.55.9-9.27.3
2022-01-22 09:0043.317.55.6-4.64.5
2022-01-22 08:0035.828.65.7-9.18.4
2022-01-22 07:0024.238.55.8-11.210.4
2022-01-22 06:0010.055.15.9-11.710.9
2022-01-22 05:008.761.95.9-7.67.0
2022-01-22 04:00----11.411.1
2022-01-22 03:0013.666.05.9-14.513.9
2022-01-22 02:0011.768.15.9-18.215.6
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.

Mobile Version | Desktop Version
Last revision date: 01:07 23-01-2022