Keywords: toxicity stream Systems: stream Substances: Imiprothrin (VPRAQYXPZIFIOH-PYMCNQPYSA-N) Acrinathrin (YLFSVIMMRPNPFK-WEQBUNFVSA-N) Cyphenothrin (FJDPATXIBIBRIM-UHFFFAOYSA-N) Deltamethrin (OWZREIFADZCYQD-NSHGMRRFSA-N)