氯化联苯；PCBs[按氯原子数或氯的百分含量分别加以标号，我国习惯上按联苯上被氯取代的个数(不论其取代位置)将PCB分为三氯联苯(PCB3)、四氯联苯(PCB4)、五氯联苯(PCB5)、六氯联苯(PCB6)]。
在陆军基地所进行的正常运作会导致大量的油料溢出，并产生大量的溶剂与聚氯联苯。
Normal operations of Army bases generate huge amounts of fuel spills, solvents and polychlorinated biphenyls (PCBs).
同时，富含omega - 3的冷水鱼有可能会使甲基汞和聚氯联苯的含量提高，这两种物质都是神经毒素。
And cold-water fish that are high in omega-3s are also likely to have elevated levels of methylmercury13 and PCBs14, both known neurotoxins.
环保人士警告说，我们居住的是个布有各种危险化学物质的世界，从强效杀虫剂到戴奥辛、聚氯联苯等有毒工业废物都有。
We live, environmentalists warn, in a world laced with dangerous chemicals, from powerful pesticides to toxic industrial wastes like dioxin and PCBs.
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