Welcome to Environmental Protection Department Air Quality Health Index Website


Central
Date TimeNO2O3SO2COPM10PM2.5
2024-03-01 00:0056.310.72.4684.711.65.7
2024-02-29 23:0058.77.43.1731.213.07.7
2024-02-29 22:0060.63.64.1905.320.413.7
2024-02-29 21:0060.54.04.2945.826.217.6
2024-02-29 20:0057.63.95.5918.530.219.3
2024-02-29 19:0065.04.07.21,026.128.717.4
2024-02-29 18:0050.64.23.9883.938.922.7
2024-02-29 17:0059.83.64.8953.877.146.8
2024-02-29 16:0075.54.64.3949.8133.580.3
2024-02-29 15:00101.05.26.81,077.9132.382.1
2024-02-29 14:00----60.740.0
2024-02-29 13:00----51.730.5
2024-02-29 12:00----39.624.1
2024-02-29 11:00----41.325.1
2024-02-29 10:00-20.62.4536.244.429.1
2024-02-29 09:00-15.62.0527.939.727.6
2024-02-29 08:0066.830.41.1437.238.023.4
2024-02-29 07:0040.351.00.8360.240.723.4
2024-02-29 06:0033.860.60.6351.635.220.9
2024-02-29 05:0033.562.40.6328.436.320.5
2024-02-29 04:0039.957.60.5331.137.020.5
2024-02-29 03:0043.756.10.6356.035.720.6
2024-02-29 02:0047.958.90.6454.532.420.5
2024-02-29 01:0058.951.10.7430.327.019.0
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: 00:07 01-03-2024