Dioxins in Air - Measurement Results of 2011

Dioxins in Air - Measurement Results of 2011

Month
Sampling Date
Concentrations
Central/Western
Tsuen Wan
January  07-01-2011 0.151 --
25-01-2011 -- 0.279
February 12-02-2011 0.053 --
24-02-2011 -- 0.036
March 08-03-2011 0.149 --
26-03-2011 -- 0.140
April 07-04-2011 0.030 --
19-04-2011 -- 0.034
May 07-05-2011 0.016 --
25-05-2011 -- 0.048
June 12-06-2011 0.009 --
24-06-2011 -- 0.008
July 12-07-2011 0.036 --
30-07-2011 -- 0.009
August 11-08-2011 0.009 --
23-08-2011 -- 0.008
September 10-09-2011 0.027 --
28-09-2011 -- 0.045
October 10-10-2011 0.036 --
22-10-2011 -- 0.029
November 09-11-2011 0.024 --
21-11-2011 --

0.065

December 03-12-2011 0.042 --
21-12-2011 -- 0.129
Annual Average

0.049

0.069


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:04:07 16-09-2019