This case study is available in English. The intended audience includes advanced level health care providers, especially pediatricians, of the special susceptibilities of children to hazardous substances in the environment and to aid in the evaluation of potentially exposed patients. This case study provides information related to at risk populations including peds, exposure pathways, physiologic effects, clinical evaluation, treatment and management, as well as workplace and environmental standards and regulations of PCB toxicity. Upon completion of this case study the participant should be able to discuss the major route of exposure for PCBs, describe two potential environmental and occupational sources of PCB exposure, give two reasons why PCBs are a health hazard, describe three factors contributing to PCB toxicity, identify evaluation and treatment protocols for persons exposed to PCBs, and list two sources of information on PCBs. The CDC designates this educational activity for a maximum of 1.0 hours toward the American Medical Association (AMA) Physician's Recognition Award, 1.5 contact hours in nursing, and 0.1 Continuing Education Units (CEUs).