Past 24 Hours Pollutant Concentration Summary

Yuen Long
Date TimeNO2O3SO2COPM10PM2.5
2020-01-19 21:0044.813.36.41,222.844.238.4
2020-01-19 20:0049.614.56.81,298.239.138.8
2020-01-19 19:0051.314.86.51,314.142.238.8
2020-01-19 18:0045.528.35.81,262.645.838.5
2020-01-19 17:0041.244.85.31,203.748.642.7
2020-01-19 16:0039.647.65.31,211.354.439.8
2020-01-19 15:0037.746.45.11,152.452.237.6
2020-01-19 14:0037.439.84.91,146.252.836.4
2020-01-19 13:0030.740.45.11,111.359.040.5
2020-01-19 12:0030.233.45.41,119.958.136.7
2020-01-19 11:0033.223.75.01,128.753.321.0
2020-01-19 10:0037.420.45.31,101.650.031.0
2020-01-19 09:0034.720.05.41,077.444.628.8
2020-01-19 08:0039.717.96.11,058.739.827.2
2020-01-19 07:0038.621.65.21,002.130.215.7
2020-01-19 06:0023.055.54.5825.019.39.5
2020-01-19 05:0019.662.44.1828.018.515.3
2020-01-19 04:0017.667.83.8820.217.711.6
2020-01-19 03:0019.067.43.0818.618.312.5
2020-01-19 02:0035.651.43.2895.619.9-
2020-01-19 01:0050.827.44.81,035.221.915.3
2020-01-19 00:0056.031.24.51,036.624.120.5
2020-01-18 23:0057.631.14.81,015.825.7-
2020-01-18 22:0064.226.44.81,096.827.3-
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:21:07 19-01-2020