Substances: Bifenthrin (OXCDWLBJSLVWHB-LKRLXIKPSA-N) Prallethrin (SMKRKQBMYOFFMU-UHFFFAOYSA-N) Chlorpyrifos-methyl (HRBKVYFZANMGRE-UHFFFAOYSA-N) Cypermethrin (KAATUXNTWXVJKI-UHFFFAOYSA-N) Keywords: pyrethroids stream