Past 24 Hours Pollutant Concentration Summary

Causeway Bay
Date TimeNO2O3SO2COPM10PM2.5
2018-02-22 20:0074.91.511.31,744.138.832.5
2018-02-22 19:0055.91.76.91,472.331.025.1
2018-02-22 18:0075.41.710.01,527.718.614.0
2018-02-22 17:0050.11.76.71,359.719.214.3
2018-02-22 16:0072.11.59.71,480.121.114.8
2018-02-22 15:0067.22.57.71,311.136.129.8
2018-02-22 14:0077.42.29.21,346.639.930.6
2018-02-22 13:0084.23.37.71,297.225.315.4
2018-02-22 12:0075.47.95.61,086.431.420.3
2018-02-22 11:0077.217.25.2997.637.526.1
2018-02-22 10:0093.612.37.41,125.036.725.7
2018-02-22 09:0079.115.46.81,012.730.020.4
2018-02-22 08:0071.413.24.9905.838.021.0
2018-02-22 07:0048.830.64.4964.336.819.6
2018-02-22 06:0035.536.83.5902.233.217.7
2018-02-22 05:0028.649.83.31,069.430.116.6
2018-02-22 04:0031.349.83.4826.428.213.3
2018-02-22 03:0040.644.73.7871.024.511.7
2018-02-22 02:0027.958.92.9730.028.315.7
2018-02-22 01:0024.566.12.6721.234.122.3
2018-02-22 00:0040.151.33.2714.428.314.3
2018-02-21 23:0063.233.54.3800.730.114.7
2018-02-21 22:0060.534.63.8866.525.615.8
2018-02-21 21:0059.528.94.1889.321.313.7
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.

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Last revision date:20:05 22-02-2018