Yuen Long
Date TimeNO2O3SO2COPM10PM2.5
2021-11-30 02:0068.93.913.7872.758.438.4
2021-11-30 01:00----59.136.7
2021-11-30 00:0096.42.411.5986.558.535.5
2021-11-29 23:00103.16.611.81,071.657.635.4
2021-11-29 22:00125.75.912.11,079.456.736.2
2021-11-29 21:00133.02.112.21,206.670.244.0
2021-11-29 20:00176.19.913.21,217.570.241.2
2021-11-29 19:00144.156.712.9918.163.136.2
2021-11-29 18:0093.575.512.0724.342.223.3
2021-11-29 17:0058.595.511.9607.641.221.7
2021-11-29 16:0047.6117.411.7599.139.521.4
2021-11-29 15:0038.0123.711.9586.539.221.6
2021-11-29 14:0039.1114.112.4586.238.322.3
2021-11-29 13:0037.2102.712.8591.940.022.5
2021-11-29 12:0038.185.613.1596.039.622.2
2021-11-29 11:0041.764.413.5638.442.524.4
2021-11-29 10:0042.859.914.2661.544.828.5
2021-11-29 09:0064.134.714.5737.444.529.9
2021-11-29 08:0084.13.813.51,090.844.233.0
2021-11-29 07:0064.34.112.2910.239.830.5
2021-11-29 06:0056.110.512.4810.043.833.3
2021-11-29 05:0047.219.112.1776.941.329.8
2021-11-29 04:0046.716.511.0790.641.529.5
2021-11-29 03:0052.013.611.0897.647.835.8
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.

Last revision date: 02:07 30-11-2021