[Minerals in Tunisia's drinking water].

We have made the physico-chemical analysis of drinking waters sampled from different Tunisian areas. The results obtained show that those waters are rich in mineral elements particularly those of the south of the country. Calcium and magnesium level in south drinking water is about three times higher than the maximum admitted concentration by WHO an EEC. The sodium, chloride and sulfate level is twice higher. The nitrate contents slightly exceeds the EEC guide level. The high mineralization observed needs a chemical quality improvement of those waters.