Past 24 Hours Pollutant Concentration Summary

Causeway Bay
Date TimeNO2O3SO2COPM10PM2.5
2018-02-21 22:0060.534.63.8866.525.615.8
2018-02-21 21:0059.528.94.1889.321.313.7
2018-02-21 20:0068.421.85.01,123.635.023.3
2018-02-21 19:0080.019.06.91,011.840.525.0
2018-02-21 18:0061.828.14.3854.743.924.5
2018-02-21 17:0056.329.83.5834.461.935.0
2018-02-21 16:0066.323.35.61,053.659.440.5
2018-02-21 15:0071.923.94.2874.750.034.9
2018-02-21 14:0067.124.44.6827.539.626.5
2018-02-21 13:0082.017.07.41,002.139.027.6
2018-02-21 12:0070.021.35.2876.549.736.3
2018-02-21 11:0085.310.97.51,101.649.037.7
2018-02-21 10:00100.88.38.11,164.155.841.7
2018-02-21 09:00125.95.711.81,286.651.740.4
2018-02-21 08:0087.623.86.8861.144.436.3
2018-02-21 07:0042.045.93.5720.034.326.1
2018-02-21 06:0023.461.23.2655.329.319.2
2018-02-21 05:0030.554.93.1652.722.710.4
2018-02-21 04:0014.164.82.2608.923.37.5
2018-02-21 03:0023.554.42.2649.317.55.2
2018-02-21 02:0031.747.62.7703.619.49.1
2018-02-21 01:0043.634.34.1736.630.018.4
2018-02-21 00:0041.635.33.9702.645.030.7
2018-02-20 23:0046.131.33.8747.256.545.6
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:22:05 21-02-2018