Concentration of Inorganic Anions in Bottled Drinking Water'

摘要

Inorganic anions (fluoride, chloride, bromide, nitrite nitrogen, nitrate nitrogen, phosphate and sulfate) in 170 samples of bottled drinking water from Japanese markets were determined by ion chromatography. Differences in concentrations of anions were found, depending on the source of the water. The average concentrations of fluoride, chloride and bromide in imported samples were greater than those of Japanese samples. Two samples contained more fluoride than the maximum level of 2 mg/L recommended in the standards of manufacture for bottled drinking water (2.4 mg/ L and 2.5 mg/L).