Central
Date TimeNO2O3SO2COPM10PM2.5
2021-11-30 01:00104.62.27.31,195.562.040.9
2021-11-30 00:00118.51.89.01,395.148.531.2
2021-11-29 23:00135.12.510.41,733.056.036.2
2021-11-29 22:00134.93.69.31,822.760.542.0
2021-11-29 21:00141.94.610.01,781.158.541.2
2021-11-29 20:00161.34.611.91,728.959.139.0
2021-11-29 19:00172.23.514.11,579.249.932.3
2021-11-29 18:00161.24.311.21,581.849.429.7
2021-11-29 17:00167.76.210.61,404.637.822.5
2021-11-29 16:00148.68.58.11,098.133.720.8
2021-11-29 15:00135.416.26.3972.734.322.2
2021-11-29 14:00109.029.15.71,055.834.622.2
2021-11-29 13:00115.715.86.9990.336.826.2
2021-11-29 12:00109.317.07.9998.334.423.2
2021-11-29 11:0098.513.97.31,000.736.922.8
2021-11-29 10:00110.36.68.5994.137.522.1
2021-11-29 09:00103.37.08.61,024.636.822.6
2021-11-29 08:00101.65.68.11,006.131.919.7
2021-11-29 07:0082.818.26.5853.032.322.0
2021-11-29 06:0058.741.25.9827.231.121.5
2021-11-29 05:0065.831.05.1830.134.923.8
2021-11-29 04:0071.625.84.0920.131.820.4
2021-11-29 03:0074.124.43.5909.132.320.3
2021-11-29 02:0083.827.94.0927.236.121.0
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.

Last revision date: 01:07 30-11-2021