How much Aluminium is in drinking water?

Aluminium salts have and are used as coagulants in town water treatment plants with some carryover into the water supply after treatment.  Aluminium in drinking water should however not exceed 0.2 mg/L and preferably under 0.1 mg/L.  It is being phased out of use in drinking water treatment plants due to links with Alzheimer’s disease.  Apart from water treatment it is also used in many other products such as antacids, anti-perspirants, food additives, vaccines, food packaging and utensils.

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