EPD

Back Home

Past 24 Hours Pollutant Concentration Summary

Yuen Long
Date TimeNO2O3SO2COPM10PM2.5
2023-02-05 17:0024.653.53.7666.222.116.8
2023-02-05 16:0023.454.53.7715.324.519.2
2023-02-05 15:0021.156.63.5660.324.419.5
2023-02-05 14:0029.447.73.7669.423.519.6
2023-02-05 13:0026.149.13.8708.621.518.8
2023-02-05 12:0021.555.93.9637.922.718.8
2023-02-05 11:0027.546.24.0675.728.922.2
2023-02-05 10:0034.334.13.9713.532.926.0
2023-02-05 09:0038.128.83.9712.433.427.0
2023-02-05 08:0033.433.53.9754.732.525.8
2023-02-05 07:0021.343.14.0659.733.727.1
2023-02-05 06:0018.248.34.0668.136.529.5
2023-02-05 05:0018.151.14.3674.138.030.3
2023-02-05 04:0017.153.24.4665.339.029.7
2023-02-05 03:0021.451.24.5680.537.627.4
2023-02-05 02:0021.357.05.4663.940.930.4
2023-02-05 01:00----38.729.4
2023-02-05 00:0027.856.33.9647.632.924.6
2023-02-04 23:0039.942.84.0669.032.424.3
2023-02-04 22:0032.949.63.8675.633.826.5
2023-02-04 21:0033.254.64.0663.730.023.5
2023-02-04 20:0034.158.04.0659.622.916.8
2023-02-04 19:0040.551.53.8651.123.316.9
2023-02-04 18:0035.558.83.9639.625.820.1
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.