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Past 24 Hours Pollutant Concentration Summary

Southern
Date TimeNO2O3SO2COPM10PM2.5
2023-01-30 06:0021.461.84.1327.734.120.4
2023-01-30 05:0013.167.84.2296.037.317.6
2023-01-30 04:0012.569.84.1301.041.317.1
2023-01-30 03:0012.374.84.3306.235.913.1
2023-01-30 02:0013.479.14.2312.530.912.6
2023-01-30 01:0030.259.04.2375.639.616.0
2023-01-30 00:0047.444.24.6439.644.916.6
2023-01-29 23:0056.438.85.5451.443.320.3
2023-01-29 22:0058.938.76.1446.239.819.9
2023-01-29 21:0033.464.95.1389.739.820.6
2023-01-29 20:0018.983.24.4362.048.320.5
2023-01-29 19:0021.981.94.9394.958.423.7
2023-01-29 18:0021.9107.85.8364.760.127.5
2023-01-29 17:0029.1101.96.8342.356.123.9
2023-01-29 16:0021.3107.85.8340.656.720.7
2023-01-29 15:0023.2105.66.5326.559.320.5
2023-01-29 14:0030.292.07.0352.057.123.6
2023-01-29 13:0046.069.67.0366.952.021.9
2023-01-29 12:0037.273.64.9378.846.319.6
2023-01-29 11:0024.483.64.4374.946.117.9
2023-01-29 10:0023.082.54.6363.551.218.5
2023-01-29 09:0020.482.84.8360.456.125.8
2023-01-29 08:0018.283.54.6348.457.724.0
2023-01-29 07:0013.789.44.5336.159.221.8
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.