The toxic substances included polychlorinated biphenyls, PCBs;dioxins;two chlorinated pesticides, DDE and dieldrin;and brominated flame retardants known as poly-brominated diphenyl ethers, PBDEs.

• 这些有毒物质包括多氯联苯、戴奥辛、DDE和狄氏2种有机氯农药，以及一般称为溴化二苯醚的溴化阻燃剂。