Kwai Chung
Date TimeNO2O3SO2COPM10PM2.5
2023-03-20 23:0047.337.25.9-30.014.5
2023-03-20 22:0040.147.55.9-35.319.9
2023-03-20 21:0038.551.75.9-34.820.1
2023-03-20 20:0050.045.36.1-34.919.9
2023-03-20 19:0073.530.56.4-32.117.2
2023-03-20 18:0055.647.66.1-30.615.8
2023-03-20 17:0046.360.06.1-34.018.9
2023-03-20 16:0054.655.16.2-36.120.8
2023-03-20 15:0053.057.46.1-37.622.8
2023-03-20 14:0052.553.25.7-35.019.8
2023-03-20 13:0045.653.85.5-42.023.8
2023-03-20 12:0057.447.15.6-39.621.9
2023-03-20 11:0054.446.75.5-36.422.0
2023-03-20 10:0048.447.75.7-31.220.2
2023-03-20 09:0051.944.65.8-22.315.1
2023-03-20 08:0044.445.95.7-16.310.8
2023-03-20 07:0020.565.25.4-13.69.6
2023-03-20 06:0013.868.65.6-8.96.9
2023-03-20 05:0014.269.75.6-6.54.9
2023-03-20 04:00----5.74.6
2023-03-20 03:006.179.65.3-4.34.2
2023-03-20 02:007.577.75.2-7.06.0
2023-03-20 01:0018.173.55.2-9.47.4
2023-03-20 00:0015.578.54.9-17.311.9
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.

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Last revision date: 23:07 20-03-2023