Evaluation of fluoride and hydrogen ions concentrations in commercial bottled drinking water in South Africa

Abstract

This study was related to determine the fluoride ion contents of bottled drinking water in South Africa by ion chromatography. A number of brands of bottled water with labeled fluoride and hydrogen ion concentrations were analyzed to evaluate the concentration of fluoride and hydrogen ions present in the bottled water. This study found one brand of bottled drinking water to have 119 % more fluoride than indicated on the bottle water label. The lowest amount of fluoride measured was 26.35 % less fluoride than recorded on the bottle water label. pH of water indicated on different brands of bottled drinking water also varied between brands. One brand of drinking water was found to have a pH that is 42 % more than indicated on the label of the brand.