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Past 24 Hours Pollutant Concentration Summary

Central/Western
Date TimeNO2O3SO2COPM10PM2.5
2024-04-17 10:0015.938.35.0-16.111.9
2024-04-17 09:0014.339.04.6-14.210.7
2024-04-17 08:0013.438.04.5-12.99.7
2024-04-17 07:007.542.44.6-14.811.8
2024-04-17 06:006.043.04.7-11.88.9
2024-04-17 05:005.545.44.8-12.89.7
2024-04-17 04:004.747.24.8-13.711.1
2024-04-17 03:006.744.14.7-14.111.3
2024-04-17 02:008.543.54.7-14.611.9
2024-04-17 01:007.244.14.7-13.410.5
2024-04-17 00:009.243.54.5-16.013.2
2024-04-16 23:008.245.04.4-16.213.0
2024-04-16 22:008.447.64.4-15.011.8
2024-04-16 21:008.448.44.3-14.711.4
2024-04-16 20:0011.744.94.6-15.511.9
2024-04-16 19:0012.443.64.7-15.812.1
2024-04-16 18:009.847.64.5-16.011.6
2024-04-16 17:0010.351.64.5-15.811.4
2024-04-16 16:0011.751.64.5-16.810.3
2024-04-16 15:0016.454.34.6-15.89.1
2024-04-16 14:0013.055.24.7-15.211.3
2024-04-16 13:0011.557.94.8---
2024-04-16 12:008.956.15.6---
2024-04-16 11:0010.452.24.9---
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.