Welcome to Environmental Protection Department Air Quality Health Index Website


Mong Kok
Date TimeNO2O3SO2COPM10PM2.5
2022-01-24 21:0040.436.01.6559.322.416.8
2022-01-24 20:0055.028.52.2631.131.225.1
2022-01-24 19:0076.717.63.6730.835.328.7
2022-01-24 18:0082.917.13.3762.641.232.8
2022-01-24 17:0092.514.43.8768.832.324.4
2022-01-24 16:0082.213.43.6793.528.221.2
2022-01-24 15:0079.715.13.2736.134.726.3
2022-01-24 14:0093.514.63.8938.435.127.7
2022-01-24 13:0091.711.34.5867.332.025.1
2022-01-24 12:0073.59.73.8758.134.326.6
2022-01-24 11:0071.87.14.4816.137.630.5
2022-01-24 10:0071.25.64.4857.635.630.1
2022-01-24 09:0066.15.64.0793.931.726.7
2022-01-24 08:0066.95.44.0812.627.222.5
2022-01-24 07:0074.75.04.3871.420.916.1
2022-01-24 06:0071.05.04.1900.226.316.4
2022-01-24 05:0078.14.46.0801.833.318.7
2022-01-24 04:0080.44.95.6887.427.920.5
2022-01-24 03:00-4.9--28.719.4
2022-01-24 02:0084.44.65.4881.930.722.2
2022-01-24 01:0085.24.86.11,012.630.221.5
2022-01-24 00:0089.54.85.6920.028.620.1
2022-01-23 23:0092.25.04.7931.929.420.4
2022-01-23 22:0095.25.15.9999.428.720.0
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: 21:07 24-01-2022