Organizations: Environmental Analytical Chemistry Substances: Cyfluthrin (OFHFONYRMVKULH-WNYJFNBPSA-N) Cyphenothrin (FJDPATXIBIBRIM-UHFFFAOYSA-N) Deltamethrin (OWZREIFADZCYQD-NSHGMRRFSA-N) Empenthrin (YUGWDVYLFSETPE-JLHYYAGUSA-N) Systems: stream Keywords: toxicity stream pesticides