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Past 24 Hours Pollutant Concentration Summary

Tsuen Wan
Date TimeNO2O3SO2COPM10PM2.5
2024-03-29 17:0077.6119.34.7790.357.836.9
2024-03-29 16:0068.4121.45.1791.652.633.4
2024-03-29 15:0077.978.95.2763.751.532.6
2024-03-29 14:0090.041.95.9766.452.432.0
2024-03-29 13:0077.448.55.0808.851.430.2
2024-03-29 12:0068.135.35.6769.745.729.7
2024-03-29 11:0074.311.27.7817.941.627.2
2024-03-29 10:0077.77.87.6883.746.431.8
2024-03-29 09:0078.84.88.1902.438.725.5
2024-03-29 08:0055.56.73.8815.431.819.8
2024-03-29 07:0068.33.54.6736.336.124.2
2024-03-29 06:0072.72.67.3687.035.623.1
2024-03-29 05:0076.72.79.7662.433.821.4
2024-03-29 04:0055.59.03.6707.932.421.1
2024-03-29 03:0064.112.04.0648.432.020.4
2024-03-29 02:0051.523.23.6638.330.118.4
2024-03-29 01:00----37.020.9
2024-03-29 00:0070.620.42.9714.337.821.7
2024-03-28 23:0064.833.53.3683.136.620.5
2024-03-28 22:0079.026.05.7691.641.624.2
2024-03-28 21:00121.53.97.6724.739.322.3
2024-03-28 20:00116.710.04.7778.936.520.9
2024-03-28 19:0097.024.74.3748.933.517.5
2024-03-28 18:0088.634.95.8651.031.615.9
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.