Tung Chung
Date TimeNO2O3SO2COPM10PM2.5
2024-05-21 01:009.768.60.4412.15.1-
2024-05-21 00:0013.066.40.4408.13.5-
2024-05-20 23:0016.463.40.3432.01.8-
2024-05-20 22:0021.759.30.3422.55.3-
2024-05-20 21:0020.057.00.3442.28.9-
2024-05-20 20:0021.557.70.4422.411.510.4
2024-05-20 19:0024.657.40.3403.99.38.6
2024-05-20 18:0024.853.90.3407.18.88.5
2024-05-20 17:0032.148.81.0417.49.07.4
2024-05-20 16:0023.663.40.6427.111.79.5
2024-05-20 15:0019.267.20.9413.89.69.0
2024-05-20 14:0019.462.70.2412.87.4-
2024-05-20 13:0022.256.20.3430.57.0-
2024-05-20 12:0020.152.10.9411.46.9-
2024-05-20 11:0019.247.30.3402.114.511.5
2024-05-20 10:0019.347.70.5393.212.19.5
2024-05-20 09:0019.150.40.3360.811.79.8
2024-05-20 08:0015.055.50.7373.08.27.5
2024-05-20 07:007.661.20.3399.47.87.5
2024-05-20 06:006.964.60.6363.410.89.5
2024-05-20 05:006.366.60.5356.59.08.6
2024-05-20 04:0011.760.90.6353.97.0-
2024-05-20 03:0010.467.40.4320.96.7-
2024-05-20 02:009.472.00.3346.16.0-
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.

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Last revision date: 01:07 21-05-2024