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Past 24 Hours Pollutant Concentration Summary

Tsuen Wan
Date TimeNO2O3SO2COPM10PM2.5
2021-06-24 02:0052.15.04.8354.814.16.9
2021-06-24 01:0049.92.94.7366.914.56.9
2021-06-24 00:0039.19.93.4359.311.36.0
2021-06-23 23:0031.724.63.2311.89.55.2
2021-06-23 22:0038.823.63.3340.912.09.6
2021-06-23 21:0057.926.73.3406.18.67.4
2021-06-23 20:0038.247.73.6312.85.75.4
2021-06-23 19:0038.346.13.6301.04.84.4
2021-06-23 18:0065.023.14.4441.15.44.9
2021-06-23 17:0065.718.24.0333.36.05.6
2021-06-23 16:0075.710.14.4336.56.96.4
2021-06-23 15:0068.613.94.0337.89.47.5
2021-06-23 14:0055.835.63.9291.313.79.9
2021-06-23 13:0068.423.66.4367.218.513.1
2021-06-23 12:0059.716.46.8402.818.513.3
2021-06-23 11:0063.814.46.9522.216.511.7
2021-06-23 10:0069.27.96.0517.714.79.8
2021-06-23 09:0059.211.65.8514.015.711.5
2021-06-23 08:0056.78.56.1483.915.610.0
2021-06-23 07:0041.315.34.5399.314.29.2
2021-06-23 06:0047.311.94.5361.712.47.6
2021-06-23 05:0021.927.23.4286.516.17.1
2021-06-23 04:0030.118.74.0295.514.56.9
2021-06-23 03:0058.39.14.4296.511.86.6
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.