EPD

Back Home

Past 24 Hours Pollutant Concentration Summary

Kwai Chung
Date TimeNO2O3SO2COPM10PM2.5
2023-09-28 14:0025.468.65.2-13.59.7
2023-09-28 13:00----15.010.3
2023-09-28 12:0045.554.95.7-15.59.5
2023-09-28 11:0052.152.65.6-16.39.8
2023-09-28 10:0035.551.26.1-16.710.3
2023-09-28 09:0038.045.35.8-13.48.3
2023-09-28 08:0034.846.16.2-12.17.3
2023-09-28 07:0026.748.06.4-12.67.1
2023-09-28 06:0022.654.66.6-13.16.6
2023-09-28 05:00----12.55.5
2023-09-28 04:00----13.96.8
2023-09-28 03:0013.652.15.6-15.48.2
2023-09-28 02:0015.457.06.0-20.211.3
2023-09-28 01:0017.967.45.8-22.813.1
2023-09-28 00:0025.262.66.2-22.413.1
2023-09-27 23:0038.454.56.2-23.615.6
2023-09-27 22:0027.260.86.0-24.816.8
2023-09-27 21:0039.852.25.8-24.518.0
2023-09-27 20:0041.051.05.9-19.813.2
2023-09-27 19:0057.846.86.3-24.315.3
2023-09-27 18:0040.375.36.2-21.515.1
2023-09-27 17:0045.978.76.2-23.315.6
2023-09-27 16:0053.555.45.2-15.911.2
2023-09-27 15:0037.857.25.1-18.714.0
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.