Table 4. Margins of exposure (MoE = CED-L/human median PCB 180 concentration) for different endpoints of PCB 180 toxicity and different human cohorts. MoE values exceeding the WHO default uncertainty factor of 25 are bolded.
Endpoint | Gender | CED-L (ng/g lipid) | Human cohort | |||||
Placenta (Denmark)1 | Placenta (Finland)1 | Mother's milk2 | General population (Finland)3 | Baltic Sea fishermen4 | Worst case: the most exposed fisherman5 | |||
Spontanous locomotor activity | F | 525 | 54.4 | 94.4 | 11.5 | 5.53 | 1.14 | 0.438 |
Serum triglycerids | M | 7260 | 752 | 1306 | 159 | 76.5 | 15.8 | 6.05 |
Liver retinol | M | 18800 | 1948 | 3381 | 410 | 198 | 40.9 | 15.7 |
Liver p53 | F | 30000 | 3109 | 5396 | 655 | 316 | 65.2 | 25 |
Serum chlolesterol | M | 91400 | 9472 | 16439 | 1996 | 963 | 199 | 76.2 |
Serum thyroxine | M | 117000 | 12124 | 21043 | 2555 | 1233 | 254 | 97.5 |
Human PCB 180 tissue concentration data: median, range (ng/g lipid).
Placenta [40] (1997–2001), Denmark: 9.65, 2.03–25.2; Finland: 5.56, 1.44–14.92.
Adipose tissue, general population, Finland [96] (1997–1999): 94.9, 11.3–833.
Adipose tissue, Baltic Sea fishermen [45] (1997–1999): 460, 190–1200.
Adipose tissue, Baltic Sea fisherman with highest exposure [45] (1997–1999): 120.