Yuen Long
Date TimeNO2O3SO2COPM10PM2.5
2023-05-28 16:0027.3101.85.3573.119.311.1
2023-05-28 15:0024.596.45.3566.619.29.1
2023-05-28 14:0022.589.54.9565.520.811.4
2023-05-28 13:0024.575.74.9553.018.910.4
2023-05-28 12:0019.772.04.5529.015.98.2
2023-05-28 11:0012.073.64.3528.816.28.5
2023-05-28 10:0011.566.34.4533.914.66.7
2023-05-28 09:0012.655.24.3525.614.66.9
2023-05-28 08:0014.049.44.4536.712.65.0
2023-05-28 07:0020.836.94.4566.114.78.5
2023-05-28 06:0017.833.04.5553.914.88.7
2023-05-28 05:0015.836.14.5545.814.48.3
2023-05-28 04:0010.546.14.4527.415.19.2
2023-05-28 03:0011.448.74.4549.815.49.6
2023-05-28 02:0014.246.34.2545.916.810.2
2023-05-28 01:00----17.510.6
2023-05-28 00:0019.042.24.3543.718.411.1
2023-05-27 23:0022.745.04.4562.417.710.6
2023-05-27 22:0018.255.04.2517.515.29.0
2023-05-27 21:0023.848.84.4552.015.89.7
2023-05-27 20:0026.944.94.5599.317.811.6
2023-05-27 19:0025.151.44.5598.218.711.8
2023-05-27 18:0026.752.04.6607.217.210.5
2023-05-27 17:0026.155.64.5541.918.311.0
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: 16:07 28-05-2023