Keywords: toxicity stream pyrethroids Insecticides Substances: Bifenthrin (OXCDWLBJSLVWHB-LKRLXIKPSA-N) Acrinathrin (YLFSVIMMRPNPFK-WEQBUNFVSA-N) λ-Cyhalothrin (ZXQYGBMAQZUVMI-QQDHXZELSA-N)