Organizations: Environmental Analytical Chemistry Keywords: toxicity stream pyrethroids Insecticides pesticides Systems: stream Substances: Bifenthrin (OXCDWLBJSLVWHB-LKRLXIKPSA-N) Cyfluthrin (OFHFONYRMVKULH-WNYJFNBPSA-N) Empenthrin (YUGWDVYLFSETPE-JLHYYAGUSA-N)