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Date TimeNO2O3SO2COPM10PM2.5
2021-06-21 05:003.826.25.1305.513.69.6
2021-06-21 04:004.129.85.2309.115.610.2
2021-06-21 03:006.243.95.4309.218.211.3
2021-06-21 02:007.854.75.0319.220.613.7
2021-06-21 01:006.458.55.1322.119.112.8
2021-06-21 00:006.359.75.0326.719.713.5
2021-06-20 23:004.965.35.0329.117.511.4
2021-06-20 22:005.863.54.9338.016.310.4
2021-06-20 21:009.660.25.1330.714.18.5
2021-06-20 20:0014.955.15.1318.413.99.6
2021-06-20 19:0015.257.45.1320.812.78.0
2021-06-20 18:0012.374.35.4349.318.511.7
2021-06-20 17:008.286.95.4353.518.512.3
2021-06-20 16:005.096.55.1354.120.714.2
2021-06-20 15:005.3104.35.3340.818.412.8
2021-06-20 14:004.396.65.6329.816.711.7
2021-06-20 13:004.189.45.8330.418.113.1
2021-06-20 12:003.790.36.2318.116.410.4
2021-06-20 11:006.279.45.9306.418.012.0
2021-06-20 10:0011.665.15.9323.016.210.3
2021-06-20 09:009.458.86.2321.917.111.2
2021-06-20 08:007.152.35.3354.815.19.6
2021-06-20 07:007.737.84.8310.515.011.2
2021-06-20 06:003.429.34.2310.012.69.3
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: 05:07 21-06-2021