Welcome to Environmental Protection Department Air Quality Health Index Website


Eastern
Date TimeNO2O3SO2COPM10PM2.5
2023-09-28 15:0035.383.62.0-21.412.2
2023-09-28 14:0028.288.11.8-20.412.0
2023-09-28 13:0030.994.02.0-17.110.1
2023-09-28 12:0025.288.61.8-18.411.0
2023-09-28 11:0028.176.41.4-19.111.2
2023-09-28 10:0030.964.81.4-17.710.2
2023-09-28 09:0031.355.81.3-16.29.4
2023-09-28 08:0027.154.01.3-15.18.8
2023-09-28 07:0023.456.21.4-15.28.6
2023-09-28 06:0016.662.01.5-16.89.6
2023-09-28 05:0012.566.81.5-16.08.6
2023-09-28 04:0011.665.11.3-16.28.5
2023-09-28 03:0010.461.71.3-16.79.3
2023-09-28 02:0014.458.01.2-19.810.8
2023-09-28 01:0019.860.01.4-19.49.7
2023-09-28 00:0022.663.01.5-22.812.0
2023-09-27 23:0025.473.21.7-25.014.1
2023-09-27 22:0032.864.61.7-21.513.3
2023-09-27 21:0032.961.01.7-16.39.3
2023-09-27 20:0032.459.22.0-16.610.4
2023-09-27 19:0034.563.21.5-18.612.5
2023-09-27 18:0043.479.81.9-20.513.2
2023-09-27 17:0046.797.92.1-24.216.0
2023-09-27 16:0035.2107.02.3-22.913.4
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: 15:07 28-09-2023