Welcome to Environmental Protection Department Air Quality Health Index Website


Mong Kok
Date TimeNO2O3SO2COPM10PM2.5
2022-09-27 09:0045.630.81.6500.312.17.6
2022-09-27 08:00-37.91.3443.111.97.5
2022-09-27 07:0023.940.11.1435.112.87.7
2022-09-27 06:0020.542.91.1432.812.26.8
2022-09-27 05:0016.848.51.0473.114.89.0
2022-09-27 04:0019.450.11.3464.813.47.6
2022-09-27 03:00-50.6--12.15.9
2022-09-27 02:0021.552.01.2490.716.17.9
2022-09-27 01:0050.246.32.0615.019.310.2
2022-09-27 00:0065.337.22.4644.020.112.3
2022-09-26 23:0068.931.02.3645.221.712.6
2022-09-26 22:0064.738.51.6642.421.712.4
2022-09-26 21:0059.353.81.5619.129.818.5
2022-09-26 20:0084.642.52.2742.429.117.4
2022-09-26 19:0096.843.52.5742.935.220.6
2022-09-26 18:00115.546.62.9787.240.324.0
2022-09-26 17:00125.846.53.8742.540.323.4
2022-09-26 16:00138.934.83.8776.441.425.3
2022-09-26 15:00144.745.24.4744.737.424.2
2022-09-26 14:00113.750.93.7710.635.522.6
2022-09-26 13:0096.658.32.7632.433.320.2
2022-09-26 12:00113.048.93.9740.938.622.2
2022-09-26 11:0092.561.93.4728.941.221.0
2022-09-26 10:0092.751.93.1735.036.318.9
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: 09:07 27-09-2022