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Past 24 Hours Pollutant Concentration Summary

Tsuen Wan
Date TimeNO2O3SO2COPM10PM2.5
2024-04-14 06:00------
2024-04-14 05:00------
2024-04-14 04:00------
2024-04-14 03:00------
2024-04-14 02:00------
2024-04-14 01:00------
2024-04-14 00:00------
2024-04-13 23:00------
2024-04-13 22:00------
2024-04-13 21:00------
2024-04-13 20:00------
2024-04-13 19:00------
2024-04-13 18:00------
2024-04-13 17:00------
2024-04-13 16:00------
2024-04-13 15:0054.277.53.9793.624.318.6
2024-04-13 14:0050.380.04.8769.625.018.2
2024-04-13 13:0049.487.85.0750.827.619.6
2024-04-13 12:0045.885.34.0745.127.419.2
2024-04-13 11:0071.155.710.2799.930.322.3
2024-04-13 10:0097.430.712.6915.733.826.3
2024-04-13 09:0075.233.06.31,006.826.021.9
2024-04-13 08:0034.356.42.4851.122.218.8
2024-04-13 07:0026.158.42.1805.719.716.3
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.

(5) Owing to temporary suspension of electricity, the operation of Tsuen Wan general air quality monitoring station will be temporarily suspended from 13 Apr 2024 to 15 Apr 2024. We apologize for any inconvenience caused.