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Dioxins in Air - Measurement Results of 2018

Month
Sampling Date
Concentrations
Central/Western
Tsuen Wan
January 20-01-2018 0.051 --
20-01-2018 -- 0.049
February 07-02-2018 0.086 --
13-02-2018 -- 0.069
March 09-03-2018 0.020 --
21-03-2018 -- 0.049
April 20-04-2018 0.019 --
08-04-2018 -- 0.044
May 08-05-2018 0.013 --
26-05-2018 -- 0.009
June 25-06-2018 0.009 --
25-06-2018 -- 0.008
July 25-07-2018 0.009 --
13-07-2018 -- 0.009
August 06-08-2018 0.009 --
24-08-2018 -- 0.031
September 05-09-2018 0.011 --
17-09-2018 -- 0.008
October 23-10-2018 0.024 --
11-10-2018 -- 0.043
November 10-11-2018 0.011 --
22-11-2018 -- 0.031
December 04-12-2018 0.009 --
04-12-2018 -- 0.015
Annual Average
0.023 0.030


NOTE :

  1. Figures are 24-hour average concentrations on the day of sampling in pg I-TEQ /m3.
  2. The concentration of dioxins is expressed as toxic equivalent (I-TEQ) concentration of 2,3,7,8 - Tetrachlorodibenzodioxin (TCDD) based on the International Toxic Equivalent Factors (I-TEF) of the North Atlantic Treaty Organization (NATO/CCMS)
  3. For congener concentrations that are lower than the estimated minimum sample detectable level (EMSDL), one half of the EMSDL is used in calculating the I-TEQ concentration

 

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Last revision date: 00:07 26-01-2022