Substances: Deltamethrin (OWZREIFADZCYQD-NSHGMRRFSA-N) Tefluthrin (ZFHGXWPMULPQSE-SZGBIDFHSA-N) Chlorpyrifos-methyl (HRBKVYFZANMGRE-UHFFFAOYSA-N) Keywords: stream pesticides pyrethroids Insecticides