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Tuen Mun
Date TimeNO2O3SO2COPM10PM2.5
2023-02-05 18:0066.910.64.6509.749.535.6
2023-02-05 17:0062.516.04.5509.141.325.4
2023-02-05 16:0041.334.73.1489.745.828.9
2023-02-05 15:0050.426.43.4487.239.224.2
2023-02-05 14:0054.421.73.8532.535.122.1
2023-02-05 13:0048.425.83.9462.335.025.9
2023-02-05 12:0048.722.44.6460.136.026.0
2023-02-05 11:0043.924.33.9447.343.727.9
2023-02-05 10:0051.716.84.0446.846.925.1
2023-02-05 09:0058.89.24.0440.542.228.9
2023-02-05 08:0040.222.42.6463.438.126.1
2023-02-05 07:0023.838.62.3453.136.133.7
2023-02-05 06:0019.944.72.4493.941.834.0
2023-02-05 05:0018.448.42.4430.847.831.1
2023-02-05 04:0018.148.82.3424.544.134.9
2023-02-05 03:0021.250.22.3428.251.732.1
2023-02-05 02:0019.157.62.3421.450.130.1
2023-02-05 01:0021.759.72.5399.244.227.1
2023-02-05 00:0043.941.73.3429.049.828.0
2023-02-04 23:0060.729.84.1436.347.127.0
2023-02-04 22:0069.821.23.4480.547.029.9
2023-02-04 21:0088.45.93.7494.040.224.2
2023-02-04 20:0095.83.13.0480.441.022.1
2023-02-04 19:0089.110.43.5461.143.924.9
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: 18:07 05-02-2023