Polychlorinated biphenyls (PCBs) fall into the category of halogenated aromatic compounds (HACs) or dioxin-like compounds (DLCs) and are highly lipophilic environmental contaminants.

• 多氯联苯(polychlorinated biphenyls,PCBs)属于卤代芳香化合物(halogenated aromatic compounds,HACs)或二?f英类化合物(dioxin-like compounds,DLCs)的范畴。