Welcome to Environmental Protection Department Air Quality Health Index Website


Eastern
Date TimeNO2O3SO2COPM10PM2.5
2024-03-19 13:0037.366.40.8-9.63.2
2024-03-19 12:0032.446.20.7-8.72.4
2024-03-19 11:0032.337.30.5-6.83.8
2024-03-19 10:0034.329.30.4-5.02.2
2024-03-19 09:0035.925.90.5-8.35.6
2024-03-19 08:0031.333.10.5-20.614.5
2024-03-19 07:0033.554.70.9-41.824.7
2024-03-19 06:0025.869.31.3-42.123.6
2024-03-19 05:0014.980.71.1-43.125.6
2024-03-19 04:0013.088.40.9-36.620.1
2024-03-19 03:0012.098.81.3-33.715.5
2024-03-19 02:0018.591.91.1-40.319.5
2024-03-19 01:0024.786.01.0-37.418.9
2024-03-19 00:0031.781.70.9-39.021.8
2024-03-18 23:0031.885.00.8-37.122.0
2024-03-18 22:0035.483.90.7-33.320.6
2024-03-18 21:0041.080.20.6-41.225.6
2024-03-18 20:0039.389.10.6-45.126.7
2024-03-18 19:0042.986.10.7-42.124.2
2024-03-18 18:0043.987.30.5-47.123.7
2024-03-18 17:0047.883.70.4-47.219.8
2024-03-18 16:0040.686.40.5-48.419.6
2024-03-18 15:0039.884.00.5-44.818.8
2024-03-18 14:0038.076.50.4-40.216.8
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: 13:07 19-03-2024