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Table 5 Comparison between different dioxin-like PCB congeners in milk and hay form Engidalur with background levels. Both absolute concentrations and the relative contributions of TEQ of each congener are presented.

From: Contamination of livestock due to the operation of a small waste incinerator: a case incident in Skutulsfjörður, Iceland, in 2010

  Hay (pg/g)1 Milk (pg/g fat) Hay (% of PCB WHO-TEQ) Milk (% of PCB WHO-TEQ)
  Engidalur Control C2 Engidalur Control C3 Engidalur Control C2 Engidalur Control C3
Non-ortho PCBs         
PCB-77 28 17 6,8 <3 0.55 1.4 0.02 <0.1
PCB-81 1.8 1.1 3,0 <0,2 0.04 0.1 0.01 <0.01
PCB-126 4.4 0.5 35,5 2,7 86.1 40.8 81.0 77.8
PCB-169 0.77 <0.09 7,5 0,7 1.5 <0.7 1.7 2.0
Mono-ortho PCBs         
PCB-105 130 88 1071 146 2.5 7.2 2.4 4.2
PCB-114 7 8 118 17 0.69 3.3 1.3 2.4
PCB-118 310 452 4358 10 6.1 36.9 9.9 0.3
PCB-123 <5 11 80 <11 <0.02 0.9 0.2 <0.3
PCB-156 22 18 231 67 2.2 7.3 2.6 9.7
PCB-157 3 3 56 19 0.29 1.2 0.6 2.7
PCB-167 5 9 107 55 0.01 0.1 0.02 0.2
PVB-189 1 <2 17 <10 0.02 <0.2 0.04 <0.3
  1. 1 The results are based on hay with 12% moisture content.
  2. 2 Average of 4 samples.
  3. 3 Average of 10 samples.