Lactating cows were given orally, single or multiple graded doses of polychlorinated biphenyls (PCB) as Aroclor 1254 and the tissue distribution and excretion were measured. Persistence of PCB in milk was determined at all dose levels of PCB administered. A distinct predilection of PCB for tissues with high lipid content was noted. Similarly, PCB appeared in higher concentration in dairy products with high fat content.
1Department of Food Science
2Department of Biomedical Sciences