title: Letters to the Editor.
authors: MacDonald Environmental Sciences, Canada.
authors: Jesse A
authors: JA
authors: Sinclair
authors: Pacific Environmental Research Centre, Canada.
authors: Donald D
authors: DD
authors: MacDonald
mesh_terms: D000818:Animals; D004784:Environmental Monitoring / Q000592:standards*; D005459:Fluorides / Q000032:analysis*; D005618:Fresh Water; D010710:Phosphates / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D010710:Phosphates; D014874:Water Pollutants, Chemical; D005459:Fluorides