"Drinking water is a common concern for people all over the world. It is more and more obvious the relation between the drinking water contamination and the generating or supporting factors of some diseases like cancer, congenital malformations, acute and chronic poisoning. Whether or not drinking water is safe for our health depends on which impurities are present and in what amounts. This paper is intended to be a comparative study concerning water pollution with metals in Romania and Spain." (Quoted from paper)