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Past 24 Hours Pollutant Concentration Summary

Tsuen Wan
Date TimeNO2O3SO2COPM10PM2.5
2023-02-07 07:0036.111.910.0482.811.57.1
2023-02-07 06:0058.04.212.3534.514.512.6
2023-02-07 05:0031.823.59.2468.512.97.5
2023-02-07 04:0055.312.19.6496.99.47.0
2023-02-07 03:0031.732.48.9448.07.0-
2023-02-07 02:0019.444.89.2441.011.19.6
2023-02-07 01:00----5.72.3
2023-02-07 00:0044.724.57.7523.611.910.4
2023-02-06 23:0031.037.27.7489.59.36.0
2023-02-06 22:0035.632.97.8548.27.83.8
2023-02-06 21:0036.333.67.9534.910.610.0
2023-02-06 20:0037.435.57.8494.016.811.5
2023-02-06 19:0063.316.18.2595.012.75.7
2023-02-06 18:0056.522.48.5556.512.410.0
2023-02-06 17:0062.022.39.0563.713.46.3
2023-02-06 16:0061.524.19.6529.118.715.1
2023-02-06 15:0035.140.98.4522.215.912.5
2023-02-06 14:0037.329.38.9579.133.120.2
2023-02-06 13:0060.010.611.1645.124.817.4
2023-02-06 12:0039.824.08.7594.67.95.0
2023-02-06 11:0048.215.210.8632.431.322.1
2023-02-06 10:0065.32.616.3734.834.523.1
2023-02-06 09:0063.51.815.5741.528.219.7
2023-02-06 08:0060.81.511.9678.622.620.0
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.