Past 24 Hours Pollutant Concentration Summary

Yuen Long
Date TimeNO2O3SO2COPM10PM2.5
2020-06-05 04:007.720.53.9319.29.07.7
2020-06-05 03:008.819.73.7329.87.55.8
2020-06-05 02:0010.419.14.0341.67.55.7
2020-06-05 01:0011.018.94.1336.98.76.0
2020-06-05 00:0017.811.54.3340.17.06.9
2020-06-04 23:0020.49.23.9361.38.08.0
2020-06-04 22:0014.519.43.8368.112.07.3
2020-06-04 21:0018.615.13.9380.813.09.0
2020-06-04 20:0019.419.64.5381.311.910.8
2020-06-04 19:0021.719.84.0391.221.69.5
2020-06-04 18:0020.525.64.2365.516.67.1
2020-06-04 17:0018.832.63.9346.510.65.2
2020-06-04 16:0011.738.24.1312.411.65.7
2020-06-04 15:009.343.43.5320.710.64.8
2020-06-04 14:0016.635.74.1335.915.65.1
2020-06-04 13:0016.634.83.9303.222.44.8
2020-06-04 12:0018.034.44.2327.817.5-
2020-06-04 11:00----12.6-
2020-06-04 10:00----15.5-
2020-06-04 09:0014.719.74.1368.217.07.9
2020-06-04 08:0020.611.33.9397.712.76.8
2020-06-04 07:0018.410.23.8373.511.78.0
2020-06-04 06:0015.79.33.6369.816.18.1
2020-06-04 05:0012.116.13.5368.210.97.2
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.

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Last revision date:04:07 05-06-2020