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This fact sheet answers the most frequently asked health questions (FAQs) about polychlorinated biphenyls (PCBs) -- a group of manufactured organic chemicals that contain 209 individual chlorinated ch... Details >
Also available in: Spanish
ToxFAQs was developed by the Toxic Substances and Disease Registry (ATSDR) to summarize known information about hazardous substances. Information for these summaries is excerpted from the ATSDR Toxico... Details >