Substances: Chlorpyrifos (SBPBAQFWLVIOKP-UHFFFAOYSA-N) Bifenthrin (OXCDWLBJSLVWHB-LKRLXIKPSA-N) Empenthrin (YUGWDVYLFSETPE-JLHYYAGUSA-N) Cypermethrin (KAATUXNTWXVJKI-UHFFFAOYSA-N) Systems: stream Keywords: pyrethroids toxicity stream Insecticides