Dioxin Level 2017

Dioxins in Air - Measurement Results of 2017

Month
Sampling Date
Concentrations
Central/Western
Tsuen Wan
January 21-01-2017 0.103 --
09-01-2017 -- 0.054
February 08-02-2017 0.041 --
20-02-2017 -- 0.032
March 04-03-2017 0.055 --
22-03-2017 -- 0.026
April 21-04-2017 0.016 --
09-04-2017 -- 0.009
May 09-05-2017 0.017 --
21-05-2017 -- 0.009
June 08-06-2017 0.008 --
20-06-2017 -- 0.009
July 20-07-2017 0.012 --
08-07-2017 -- 0.009
August 07-08-2017 0.009 --
25-08-2017 -- 0.009
September 06-09-2017 0.009 --
24-09-2017 -- 0.009
October 24-10-2017 0.038 --
12-10-2017 -- 0.030
November 05-11-2017 0.047 --
23-11-2017 -- 0.044
December 05-12-2017 0.063 --
17-12-2017 -- 0.066
Annual Average

0.035

0.026


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 19-06-2019