Welcome to Environmental Protection Department Air Quality Health Index Website


Eastern
Date TimeNO2O3SO2COPM10PM2.5
2024-02-23 11:0033.424.60.5-25.412.0
2024-02-23 10:0030.228.40.5-24.012.4
2024-02-23 09:0029.934.90.4-17.59.8
2024-02-23 08:0026.939.30.5-13.88.0
2024-02-23 07:0018.948.20.4-11.97.9
2024-02-23 06:0014.452.60.6-15.011.0
2024-02-23 05:0011.458.80.5-18.212.1
2024-02-23 04:009.458.60.6-26.713.7
2024-02-23 03:0013.153.10.8-34.619.0
2024-02-23 02:0017.649.60.8-25.518.6
2024-02-23 01:0027.343.91.2-25.720.7
2024-02-23 00:0039.038.11.3-21.016.9
2024-02-22 23:0037.740.91.2-22.116.7
2024-02-22 22:0031.553.71.2-23.917.7
2024-02-22 21:0039.844.91.5-25.318.1
2024-02-22 20:0044.943.91.4-23.016.2
2024-02-22 19:0047.345.60.9-20.214.6
2024-02-22 18:0049.943.70.8-19.914.4
2024-02-22 17:0040.650.20.8-20.513.3
2024-02-22 16:0041.148.60.9-26.215.6
2024-02-22 15:0041.346.21.1-26.916.0
2024-02-22 14:0039.538.40.8-23.915.3
2024-02-22 13:0035.836.80.7-25.015.9
2024-02-22 12:0040.130.40.9-25.117.0
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: 11:07 23-02-2024