Kwai Chung
Date TimeNO2O3SO2COPM10PM2.5
2021-09-22 18:0019.338.61.8-5.54.5
2021-09-22 17:0020.839.31.9-5.24.0
2021-09-22 16:0017.944.11.6-8.67.3
2021-09-22 15:0026.539.91.9-7.36.0
2021-09-22 14:0018.851.22.5-7.76.5
2021-09-22 13:0035.231.45.0-9.57.0
2021-09-22 12:0040.318.05.5-8.26.4
2021-09-22 11:0020.928.52.3-4.94.2
2021-09-22 10:0019.024.82.8-7.35.8
2021-09-22 09:0024.814.93.0-7.64.9
2021-09-22 08:0027.57.82.8-9.56.1
2021-09-22 07:0025.76.12.0-11.55.5
2021-09-22 06:0025.96.42.4-11.05.7
2021-09-22 05:0024.45.72.8-8.44.2
2021-09-22 04:00----9.04.4
2021-09-22 03:0029.44.12.9-12.17.2
2021-09-22 02:0041.92.53.4-18.712.7
2021-09-22 01:0058.0-4.7-22.614.5
2021-09-22 00:0059.01.85.0-22.215.3
2021-09-21 23:0061.41.94.9-21.013.6
2021-09-21 22:0062.62.04.6-25.818.0
2021-09-21 21:0066.72.25.5-25.317.6
2021-09-21 20:0071.12.16.7-20.313.6
2021-09-21 19:0071.51.910.2-17.912.9
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: 18:07 22-09-2021