Dioxins in Air - Measurement Results of 2007

Dioxins in Air - Measurement Results of 2007

Month
Sampling Date
Concentrations
Central/Western
Tsuen Wan
January  04-01-2007 0.093 --
16-01-2007 -- 0.078
February 03-02-2007 0.101 --
15-02-2007 -- 0.062
March 05-03-2007 -- 0.054
23-03-2007 0.041 --
April 16-04-2007 -- 0.037
28-04-2007 0.046 --
May 10-05-2007 0.043 --
28-05-2007 -- 0.036
June 09-06-2007 -- 0.036
21-06-2007 0.036 --
July 09-07-2007 -- 0.035
21-07-2007 0.035 --
August 02-08-2007 0.035 --
20-08-2007 -- 0.037
September 07-09-2007 -- 0.060
19-09-2007 0.169 --
October 07-10-2007 -- 0.190
25-10-2007 0.057 --
November 06-11-2007 0.139 --
24-11-2007 -- 0.069
December 06-12-2007 -- 0.297
18-12-2007 0.073 --
Annual Average
0.072 0.083


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