Substances: Chlorpyrifos (SBPBAQFWLVIOKP-UHFFFAOYSA-N) Acrinathrin (YLFSVIMMRPNPFK-WEQBUNFVSA-N) Bifenthrin (OXCDWLBJSLVWHB-LKRLXIKPSA-N) Cypermethrin (KAATUXNTWXVJKI-UHFFFAOYSA-N) Systems: stream Keywords: pyrethroids stream Insecticides