Polychlorinated biphenyls in serum, liver and adipose tissue of subjects with hepatocellular carcinoma living in a highly polluted area

► 101 HCC cases living in highly PCBs-polluted area were enrolled. ► PCBs were measured in serum, liver and fat of 59 cases who underwent surgery. ► Close correlations were found among three tissues. ► Lipid-adjusted serum PCBs level is a valid measure of PCBs body burden.