Dioxins in Air - Measurement Results of 2000

Dioxins in Air - Measurement Results of 2000

Month
Sampling Date
Concentrations
Central/Western
Tsuen Wan
January  10-1-2000 0.054 0.067
16-1-2000 0.105 0.256
19-1-2000 0.047 --
February  2-2-2000 0.093 --
9-2-2000 -- 0.045
15-2-2000 0.053 0.050
March  4-3-2000 0.043 0.073
22-3-2000 0.037 0.045
April  3-4-2000 0.061 0.061
19-4-2000 0.036 0.036
May  9-5-2000 0.035 --
21-5-2000 0.047 0.044
24-5-2000 -- 0.036
June  2-6-2000 0.036 0.036
14-6-2000 0.036 0.036
July  3-7-2000 0.036 0.036
20-7-2000 0.037 0.036
August  6-8-2000 0.036 0.036
18-8-2000 0.047 0.036
September  6-9-2000 0.035 0.035
24-9-2000 0.035 0.036
October 6-10-2000 0.035 0.037
18-10-2000 0.062 0.129
November  21-11-2000 0.117 --
23-11-2000 -- 0.088
29-11-2000 0.044 --
December  2-12-2000 -- 0.075
5-12-2000 0.053 0.057
18-12-2000 0.056 0.070
Annual Average
0.051 0.061


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