结论：多氯联苯化合物在皮肤血管瘤患儿头发中的水平增高。
Conclusion: PCBs in the hair of infants with skin hemangioma is much higher.
某些化合物，如多氯联苯或多氯联苯，已经被禁止在美国。
Certain compounds, such as polychlorinated biphenyls, or PCBs, have been banned in the United States.
港口设施的建设和改造，而造成地下水污染和对空气的污染是来自石棉、含铅的油漆、灰尘、沉淀物、多氯联苯、石油碳氢化合物等。
Port facilities construction and renovation contribute to surface and ground water contamination and air pollution from asbestos, lead-based paint, dust, sediments, PCBs and petroleum hydrocarbons.
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