Central
Date TimeNO2O3SO2COPM10PM2.5
2021-10-16 15:00110.920.46.31,206.028.118.3
2021-10-16 14:0092.133.64.91,209.824.815.7
2021-10-16 13:0088.830.75.41,207.826.216.3
2021-10-16 12:0089.819.25.91,259.328.617.6
2021-10-16 11:0081.48.96.01,278.324.815.5
2021-10-16 10:0066.37.95.51,240.823.315.6
2021-10-16 09:0059.45.95.51,222.826.417.0
2021-10-16 08:0057.44.55.31,224.225.616.4
2021-10-16 07:0052.64.94.51,132.018.59.7
2021-10-16 06:0026.332.83.61,020.016.67.8
2021-10-16 05:0024.036.53.61,016.416.99.5
2021-10-16 04:0031.431.93.7972.614.37.6
2021-10-16 03:0024.241.03.7956.115.18.2
2021-10-16 02:0026.838.23.7972.715.99.4
2021-10-16 01:0039.628.53.8985.313.18.9
2021-10-16 00:0043.321.63.9978.213.49.4
2021-10-15 23:0058.94.25.31,225.111.28.1
2021-10-15 22:0059.910.95.61,163.011.69.8
2021-10-15 21:0059.87.15.21,211.313.011.0
2021-10-15 20:0064.612.25.21,137.011.19.8
2021-10-15 19:0064.59.95.81,135.88.27.1
2021-10-15 18:0058.212.04.91,104.47.95.8
2021-10-15 17:0061.213.14.81,083.46.84.6
2021-10-15 16:0060.115.84.31,068.48.56.9
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: 15:07 16-10-2021