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Past 24 Hours Pollutant Concentration Summary

Central/Western
Date TimeNO2O3SO2COPM10PM2.5
2019-10-17 12:0043.198.87.3---
2019-10-17 11:0044.485.47.4-41.628.6
2019-10-17 10:0060.759.47.5-40.325.0
2019-10-17 09:0057.158.17.1-39.123.4
2019-10-17 08:0045.961.36.7-36.222.5
2019-10-17 07:0022.687.06.3-34.621.9
2019-10-17 06:0011.596.45.6-30.618.0
2019-10-17 05:003.5116.14.9-30.017.6
2019-10-17 04:0010.2112.94.9-31.518.4
2019-10-17 03:009.7119.15.1-32.318.7
2019-10-17 02:0013.0118.65.2-29.415.6
2019-10-17 01:0018.9110.95.2-31.217.5
2019-10-17 00:0024.5104.95.2-30.216.7
2019-10-16 23:0027.0108.05.2-31.418.6
2019-10-16 22:0024.4119.85.2-31.418.7
2019-10-16 21:0028.7124.75.6-30.619.5
2019-10-16 20:0035.0121.05.6-29.618.5
2019-10-16 19:0050.2109.65.6-32.018.9
2019-10-16 18:0048.0118.35.6-30.917.0
2019-10-16 17:0045.8121.15.6-31.517.3
2019-10-16 16:0031.8134.65.5-31.417.6
2019-10-16 15:0028.0133.05.3-28.315.5
2019-10-16 14:0029.2124.75.2-27.517.2
2019-10-16 13:0027.8119.65.2-26.716.4
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.