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Past 24 Hours Pollutant Concentration Summary

Yuen Long
Date TimeNO2O3SO2COPM10PM2.5
2022-09-27 08:0022.936.84.6608.216.710.4
2022-09-27 07:0017.343.43.9626.516.210.1
2022-09-27 06:001.857.93.3569.517.010.7
2022-09-27 05:000.069.83.0556.319.712.1
2022-09-27 04:000.076.82.8564.618.511.1
2022-09-27 03:000.085.42.8541.617.09.2
2022-09-27 02:000.077.32.7585.317.28.5
2022-09-27 01:000.080.72.6575.617.27.5
2022-09-27 00:000.085.92.8571.014.55.0
2022-09-26 23:003.481.23.0565.514.75.7
2022-09-26 22:005.287.23.1569.316.66.1
2022-09-26 21:004.8105.03.4585.821.59.1
2022-09-26 20:0015.9106.33.8636.629.915.4
2022-09-26 19:0026.1123.34.0700.131.815.2
2022-09-26 18:0031.1133.94.0677.236.116.9
2022-09-26 17:0031.9172.24.3708.354.131.7
2022-09-26 16:0024.4220.64.3729.794.275.2
2022-09-26 15:0018.0221.24.4743.874.756.0
2022-09-26 14:0024.0199.84.2707.443.622.4
2022-09-26 13:0013.9188.44.2672.640.319.3
2022-09-26 12:0011.0165.54.5660.339.818.8
2022-09-26 11:0016.8128.54.7726.036.016.6
2022-09-26 10:0016.0114.34.9693.436.618.6
2022-09-26 09:0013.291.63.8656.929.313.7
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.