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North
Date TimeNO2O3SO2COPM10PM2.5
2021-10-22 05:0014.139.12.4491.63.5-
2021-10-22 04:0013.840.71.9500.82.6-
2021-10-22 03:0014.541.31.7501.13.31.5
2021-10-22 02:0015.945.01.7504.06.92.8
2021-10-22 01:0018.946.61.6495.512.47.1
2021-10-22 00:0020.048.11.8519.715.85.1
2021-10-21 23:0022.548.91.9523.019.43.4
2021-10-21 22:0026.547.82.2568.318.04.8
2021-10-21 21:0028.846.62.1587.818.37.1
2021-10-21 20:0030.445.82.5580.119.07.7
2021-10-21 19:0034.145.52.7679.820.17.4
2021-10-21 18:0039.541.72.4572.521.97.2
2021-10-21 17:0042.238.22.6681.526.56.7
2021-10-21 16:0037.041.52.3566.530.38.2
2021-10-21 15:0046.030.72.7577.135.710.3
2021-10-21 14:0044.833.83.0584.445.115.1
2021-10-21 13:0054.137.53.2588.050.714.9
2021-10-21 12:0050.336.73.1526.937.710.6
2021-10-21 11:0046.345.53.2484.731.614.8
2021-10-21 10:0055.136.33.2526.838.417.7
2021-10-21 09:0082.08.24.6675.228.514.4
2021-10-21 08:0071.76.34.2702.815.49.3
2021-10-21 07:0040.85.13.4662.611.38.0
2021-10-21 06:0047.26.52.8513.711.59.3
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 22-10-2021