Variables: concentration Substances: Acrinathrin (YLFSVIMMRPNPFK-WEQBUNFVSA-N) Allethrin (ZCVAOQKBXKSDMS-UHFFFAOYSA-N) Bifenthrin (OXCDWLBJSLVWHB-LKRLXIKPSA-N) Empenthrin (YUGWDVYLFSETPE-JLHYYAGUSA-N) Cyfluthrin (OFHFONYRMVKULH-WNYJFNBPSA-N) Systems: stream Keywords: pyrethroids toxicity stream pesticides Insecticides