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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.
| 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 |
