Dioxins in Air - Measurement Results of 2015

Month
Sampling Date
Concentrations
Central/Western
Tsuen Wan
January 26-01-2015 0.098 --
08-01-2015 -- 0.055
February 07-02-2015 0.114 --
13-02-2015 -- 0.051
March 15-03-2015 0.021 --
27-03-2015 -- 0.080
April 26-04-2015 0.017 --
02-04-2015 -- 0.016
May 08-05-2015 0.008 --
14-05-2015 -- 0.009
June 19-06-2015 0.008 --
25-06-2015 -- 0.009
July 25-07-2015 0.008 --
07-07-2015 -- 0.044
August 06-08-2015 0.009 --
12-08-2015 -- 0.010 
September 17-09-2015 0.015 --
23-09-2015 -- 0.009 
October 23-10-2015 0.026 --
05-10-2015 -- 0.009
November 04-11-2015 0.058  --
16-11-2015 -- 0.017 
December 16-12-2015 0.050 --
22-12-2015 -- 0.033 
Annual Average

0.036 

0.029 


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: 16:06 28-03-2024