Welcome to Environmental Protection Department Air Quality Health Index Website


North
Date TimeNO2O3SO2COPM10PM2.5
2024-02-27 08:0034.59.93.1517.617.512.8
2024-02-27 07:0025.916.03.0483.815.613.5
2024-02-27 06:0018.923.83.7442.815.012.9
2024-02-27 05:0015.029.83.3462.818.012.8
2024-02-27 04:0015.331.93.2483.824.916.4
2024-02-27 03:0025.821.03.3560.435.222.1
2024-02-27 02:0041.32.73.7701.844.925.3
2024-02-27 01:0049.01.64.5733.445.524.7
2024-02-27 00:0052.51.84.3740.640.421.4
2024-02-26 23:0058.11.84.3732.440.722.2
2024-02-26 22:0065.37.84.3663.444.622.5
2024-02-26 21:0064.820.14.4642.154.326.9
2024-02-26 20:0061.239.14.5622.950.226.3
2024-02-26 19:0066.560.14.5606.334.120.6
2024-02-26 18:0044.373.23.2553.124.720.8
2024-02-26 17:0035.380.33.4596.825.422.8
2024-02-26 16:0035.181.63.4598.034.022.6
2024-02-26 15:0028.274.93.6537.238.519.8
2024-02-26 14:0030.352.37.3536.638.519.3
2024-02-26 13:00-36.717.3539.135.417.0
2024-02-26 12:00----34.815.4
2024-02-26 11:0023.418.53.0483.836.314.7
2024-02-26 10:0026.812.42.7504.033.813.8
2024-02-26 09:0024.413.32.6493.328.514.4
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: 08:07 27-02-2024