Evaluation of Drinking Water Aptness in Some Directorates of Dhamar – Yemen

الملخص

This study comprised an environmental evaluation of drinking water aptness, vital physical and chemical analyses were conducted for eight samples of some wells located in villages of Directorates of Dhamar Governorate, the study aimed to evaluate the suitability of drinking water used by local residents of these villages of which having higher water demand for irrigation and drinking, Results of this study indicated that most of action and anion concentrations are within the safe limits that are internationally and locally permitted, except for fluoride concentration which found to be exceeding the range values recommended by the World Health Organization, the results of this investigation showed that the degree of teeth injury of those people included in the investigation were uncertain (11%) and very light (13%); however, (47%) had mild injury and (29%) had medium injury, as per Dean's scale for teeth health assessment, Therefore, there is health hazard to consumers of these water-studied samples due to their higher fluoride concentrations,The results of bacteriological analysis showed no single sample contained any number of total coli forms and fecal coli forms.