Past 24 Hours Pollutant Concentration Summary

Central/Western
Date TimeNO2O3SO2COPM10PM2.5
2019-09-20 19:0066.2124.36.8-44.722.6
2019-09-20 18:0058.0157.57.6-48.724.9
2019-09-20 17:0069.7175.07.8-62.135.6
2019-09-20 16:0080.9224.68.3-53.529.9
2019-09-20 15:0063.7176.35.7-40.823.1
2019-09-20 14:0051.6170.45.4-41.624.4
2019-09-20 13:0045.6181.56.4-45.226.6
2019-09-20 12:0050.6156.76.9-44.825.5
2019-09-20 11:0063.2126.18.3-40.922.6
2019-09-20 10:00------
2019-09-20 09:0064.790.78.0-42.022.4
2019-09-20 08:0047.094.97.8-43.125.0
2019-09-20 07:0035.897.47.1-52.930.0
2019-09-20 06:0068.259.06.6-44.625.6
2019-09-20 05:0028.0105.65.1-40.624.0
2019-09-20 04:0014.1133.55.2-43.726.0
2019-09-20 03:0026.1105.77.1-44.926.4
2019-09-20 02:0023.9115.57.3-44.725.3
2019-09-20 01:0045.2111.04.7-45.927.3
2019-09-20 00:0034.5129.04.5-43.325.6
2019-09-19 23:0017.5159.04.6-42.924.6
2019-09-19 22:0017.1160.54.6-43.325.5
2019-09-19 21:0017.8169.14.5-46.830.6
2019-09-19 20:0023.1169.44.8-44.831.6
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:19:07 20-09-2019