Welcome to Environmental Protection Department Air Quality Health Index Website


Central
Date TimeNO2O3SO2COPM10PM2.5
2024-03-29 06:0071.02.33.0504.739.625.1
2024-03-29 05:0071.52.22.8461.041.828.7
2024-03-29 04:0074.54.52.5465.341.627.2
2024-03-29 03:00-2.8--42.125.4
2024-03-29 02:0087.01.73.3456.745.926.0
2024-03-29 01:0096.31.84.2542.447.225.2
2024-03-29 00:00107.52.04.6610.450.229.1
2024-03-28 23:00106.62.53.9612.749.926.8
2024-03-28 22:00115.71.85.3676.256.731.7
2024-03-28 21:00134.02.17.2846.863.332.0
2024-03-28 20:00135.72.48.7933.456.927.7
2024-03-28 19:00130.04.37.6781.840.224.3
2024-03-28 18:00119.26.05.4961.643.124.4
2024-03-28 17:00122.76.96.3670.345.422.4
2024-03-28 16:00106.116.43.9537.749.125.0
2024-03-28 15:0088.317.54.4621.836.119.4
2024-03-28 14:0078.819.83.5648.742.326.3
2024-03-28 13:00103.910.35.6747.537.420.4
2024-03-28 12:00111.58.64.9555.841.523.6
2024-03-28 11:00120.66.08.1590.458.531.4
2024-03-28 10:00124.93.48.3727.154.628.4
2024-03-28 09:00110.56.73.7623.152.524.1
2024-03-28 08:00104.810.92.3431.351.621.1
2024-03-28 07:0069.338.11.5352.144.717.6
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: 06:07 29-03-2024