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Yuen Long
Date TimeNO2O3SO2COPM10PM2.5
2023-01-30 04:0040.226.66.1652.031.322.7
2023-01-30 03:0048.726.210.3713.237.025.8
2023-01-30 02:00----40.628.3
2023-01-30 01:00----44.230.7
2023-01-30 00:0071.316.94.5895.044.829.5
2023-01-29 23:0076.213.15.0959.949.733.1
2023-01-29 22:0081.516.95.6900.153.235.3
2023-01-29 21:0090.019.46.6930.752.233.3
2023-01-29 20:0074.546.46.9687.253.931.6
2023-01-29 19:0075.158.55.9635.647.027.1
2023-01-29 18:0056.381.25.9527.146.727.6
2023-01-29 17:0032.5107.46.0483.545.227.2
2023-01-29 16:0024.3113.65.8522.644.126.7
2023-01-29 15:0021.5110.65.4497.440.824.2
2023-01-29 14:0018.7106.65.4492.343.026.1
2023-01-29 13:0016.4102.05.5507.842.025.0
2023-01-29 12:0016.195.75.6485.843.226.0
2023-01-29 11:0017.589.25.7511.242.624.4
2023-01-29 10:0018.584.05.5495.142.524.5
2023-01-29 09:0023.675.55.1494.541.123.6
2023-01-29 08:0025.274.75.0525.743.325.8
2023-01-29 07:0021.578.75.0513.348.428.9
2023-01-29 06:0015.686.65.0503.348.327.3
2023-01-29 05:0015.888.65.0490.348.927.1
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.

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Last revision date: 04:07 30-01-2023