Distribution of polychlorinated biphenyls: structural requirements for accumulation in the mouse bronchial mucosa

Autoradiography showed that labelled polychlorinated biphenyls with chlorine in positions 2, 41, 5 and hydrogen in positions 3, 31, 6, 61 in the molecule are accumulated in the mouse bronchial mucosa. Further testing of this observation showed that 2, 21, 4, 51-tetrachlorbiphenyl-14C, but not biphenyl-14C, was taken up in the bronchi of mice.