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Tuen Mun
Date TimeNO2O3SO2COPM10PM2.5
2021-01-23 00:00110.74.69.21,362.091.957.9
2021-01-22 23:00114.34.611.31,293.591.056.1
2021-01-22 22:00117.74.312.71,188.873.353.1
2021-01-22 21:00114.55.08.81,171.060.246.2
2021-01-22 20:00117.84.810.01,069.155.138.3
2021-01-22 19:00113.35.78.01,063.939.330.3
2021-01-22 18:0088.025.27.0934.734.125.2
2021-01-22 17:0061.958.95.7834.437.917.3
2021-01-22 16:0058.985.54.8815.332.119.9
2021-01-22 15:0057.876.36.4825.136.920.0
2021-01-22 14:0068.258.510.0841.741.925.8
2021-01-22 13:0063.963.49.6851.265.637.6
2021-01-22 12:0089.239.513.81,018.473.945.7
2021-01-22 11:0090.428.017.51,065.387.850.8
2021-01-22 10:0091.612.915.61,082.870.350.0
2021-01-22 09:0085.17.217.21,133.680.852.9
2021-01-22 08:0091.25.116.91,189.284.956.9
2021-01-22 07:0097.54.811.21,559.884.057.0
2021-01-22 06:0094.24.77.81,465.589.958.0
2021-01-22 05:0095.84.57.91,445.790.058.0
2021-01-22 04:0096.94.79.71,390.684.148.3
2021-01-22 03:0092.34.513.41,067.290.949.0
2021-01-22 02:0093.74.612.01,062.586.147.1
2021-01-22 01:0097.04.612.21,048.3147.086.6
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: 00:07 23-01-2021