Question: In which human body tissue are polychlorinated biphenyls (PCBs) preferentially stored?
Answer: The cited reference notes “PCBs are pervasive environmental contaminants that are found in body tissues and fluids of the general population. Because they are lipophilic and generally have half-lives longer than 1 week, PCBs are preferentially stored in adipose tissue and are present in serum, blood plasma, and human milk.” (https://www.atsdr.cdc.gov/toxprofiles/tp17.pdf; accessed Jan 2017)
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