Substances: Imiprothrin (VPRAQYXPZIFIOH-PYMCNQPYSA-N) Cyfluthrin (OFHFONYRMVKULH-WNYJFNBPSA-N) Bifenthrin (OXCDWLBJSLVWHB-LKRLXIKPSA-N) Chlorpyrifos-methyl (HRBKVYFZANMGRE-UHFFFAOYSA-N) Keywords: pyrethroids stream