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Yuen Long
Date TimeNO2O3SO2COPM10PM2.5
2023-09-28 16:0024.872.45.8720.413.79.6
2023-09-28 15:0018.380.85.6700.313.810.2
2023-09-28 14:0017.783.45.7719.314.510.5
2023-09-28 13:0021.383.66.0735.316.412.0
2023-09-28 12:0019.088.05.9731.216.111.2
2023-09-28 11:0022.279.06.3762.115.310.1
2023-09-28 10:0021.667.06.5728.513.38.1
2023-09-28 09:0022.558.66.3733.115.09.7
2023-09-28 08:0030.740.26.6765.216.910.5
2023-09-28 07:0020.247.66.3701.415.19.4
2023-09-28 06:0016.853.06.1736.114.38.7
2023-09-28 05:0010.759.25.9672.314.88.8
2023-09-28 04:009.260.65.9668.115.89.8
2023-09-28 03:007.264.96.0664.916.59.3
2023-09-28 02:0010.471.65.9690.822.013.6
2023-09-28 01:0011.977.95.8711.922.915.0
2023-09-28 00:0024.565.15.1767.422.615.5
2023-09-27 23:0023.766.46.0761.223.416.5
2023-09-27 22:0026.057.86.2754.623.017.4
2023-09-27 21:0031.462.76.2813.719.614.5
2023-09-27 20:0028.276.06.4783.120.715.2
2023-09-27 19:0039.881.86.2825.220.714.6
2023-09-27 18:0044.779.46.1833.817.411.5
2023-09-27 17:0034.881.55.9770.113.98.8
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: 16:07 28-09-2023