EPD

Back Home

Past 24 Hours Pollutant Concentration Summary

Kwai Chung
Date TimeNO2O3SO2COPM10PM2.5
2024-04-30 12:0052.55.15.6-20.89.2
2024-04-30 11:0051.33.66.6-21.610.1
2024-04-30 10:0052.84.16.9-23.713.0
2024-04-30 09:0052.63.28.3-22.512.7
2024-04-30 08:0051.21.78.9-19.010.7
2024-04-30 07:0046.72.68.5-19.511.7
2024-04-30 06:0039.67.513.6-15.38.2
2024-04-30 05:0039.65.119.1-14.48.2
2024-04-30 04:0040.95.124.1-12.25.8
2024-04-30 03:0033.110.413.9-12.16.0
2024-04-30 02:0034.38.99.5-14.18.1
2024-04-30 01:0043.15.510.9-14.27.9
2024-04-30 00:0045.96.512.3-16.39.9
2024-04-29 23:0054.61.217.6-19.713.0
2024-04-29 22:0056.31.514.6-17.310.8
2024-04-29 21:0059.11.416.5-16.510.1
2024-04-29 20:0063.32.59.0-16.29.3
2024-04-29 19:0064.52.48.5-14.57.5
2024-04-29 18:0062.85.55.7-16.49.4
2024-04-29 17:0059.410.45.1-19.813.6
2024-04-29 16:0057.912.14.7-17.810.4
2024-04-29 15:0055.714.74.6-17.89.6
2024-04-29 14:0053.915.94.5-17.810.4
2024-04-29 13:0052.716.14.3-17.910.1
Remarks:

(1) Time shown is in Hong Kong time.

(2) Concentration shown is in microgram per cubic metre (µg/m3).

(3) Abbreviation:
NO2 - nitrogen dioxide, O3 - ozone,
SO2 - sulphur dioxide, CO - carbon monoxide,
PM10 - respirable suspended particulates,
PM2.5 - fine suspended particulates

(4) The pollutant concentration is based on real time data taken directly from EPD's Air Quality Monitoring Network.