Welcome to Environmental Protection Department Air Quality Health Index Website


Southern
Date TimeNO2O3SO2COPM10PM2.5
2022-01-23 02:0012.171.50.5345.115.24.4
2022-01-23 01:0014.069.60.7358.211.43.6
2022-01-23 00:0015.969.90.6385.27.86.4
2022-01-22 23:0020.165.50.6389.24.3-
2022-01-22 22:0012.770.60.6365.02.92.5
2022-01-22 21:0012.074.00.6345.72.41.0
2022-01-22 20:0016.272.60.5341.01.80.5
2022-01-22 19:0019.470.40.6356.44.33.0
2022-01-22 18:0032.455.40.6423.48.32.7
2022-01-22 17:0028.959.70.6441.07.6-
2022-01-22 16:0029.660.00.6388.59.8-
2022-01-22 15:0032.256.60.5400.811.33.2
2022-01-22 14:0028.458.90.2393.59.22.6
2022-01-22 13:0026.856.00.7455.48.14.4
2022-01-22 12:0031.049.81.0542.88.65.2
2022-01-22 11:0038.945.71.2521.46.23.6
2022-01-22 10:0034.044.50.9540.15.2-
2022-01-22 09:0035.435.90.8629.13.7-
2022-01-22 08:0025.141.90.9605.35.8-
2022-01-22 07:0026.441.00.9596.66.0-
2022-01-22 06:0021.250.70.7579.04.02.2
2022-01-22 05:0011.466.00.6534.57.5-
2022-01-22 04:0010.869.50.8543.69.9-
2022-01-22 03:0014.270.70.8510.514.19.4
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: 02:07 23-01-2022