Central
Date TimeNO2O3SO2COPM10PM2.5
2021-09-22 19:0045.223.93.3934.37.04.5
2021-09-22 18:0037.530.43.3847.18.45.9
2021-09-22 17:0037.230.43.7788.26.74.3
2021-09-22 16:0040.127.33.6823.110.57.0
2021-09-22 15:0038.336.93.4822.19.35.7
2021-09-22 14:0034.439.13.2813.58.55.8
2021-09-22 13:0027.238.63.3819.011.07.6
2021-09-22 12:0037.122.73.6804.410.24.7
2021-09-22 11:0045.313.34.3856.79.85.5
2021-09-22 10:0033.511.83.8815.19.26.0
2021-09-22 09:0035.18.34.9915.611.46.6
2021-09-22 08:0041.24.25.61,174.411.66.8
2021-09-22 07:0032.2-4.4922.48.05.5
2021-09-22 06:0031.86.33.8874.17.16.3
2021-09-22 05:0033.66.43.8907.85.54.7
2021-09-22 04:0035.95.53.9925.94.63.7
2021-09-22 03:0033.24.83.9895.54.03.4
2021-09-22 02:0034.26.33.9904.28.87.3
2021-09-22 01:0042.53.94.5991.59.97.7
2021-09-22 00:0055.12.25.71,003.615.511.2
2021-09-21 23:0069.92.97.91,320.120.914.7
2021-09-21 22:0077.83.49.71,395.930.022.2
2021-09-21 21:0085.34.711.21,885.144.233.0
2021-09-21 20:0091.84.811.71,687.630.018.7
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: 19:07 22-09-2021