Organizations: Environmental Analytical Chemistry Keywords: pyrethroids Substances: Allethrin (ZCVAOQKBXKSDMS-UHFFFAOYSA-N) Deltamethrin (OWZREIFADZCYQD-NSHGMRRFSA-N) Chlorpyrifos-methyl (HRBKVYFZANMGRE-UHFFFAOYSA-N)