In this study, the concentrations of the physical properties such as the acidity number (pH), temperature (T), electrical conductivity (EC), total dissolved solids (TDS) and total hardness (TH) and, the chemical properties such as calcium (Ca2+), magnesium (Mg2+), sodium (Na+), potassium (K+), nitrates (NO3-), sulfates (SO42-), bicarbonate (HCO3-), phosphates (PO43-), fluoride (F-), and chloride (Cl-) in the groundwater in selected areas in Al-Dhalia district, Al-Dhalia, governorate were determined by collecting water samples from 16 wells and thereafter the samples were analyzed, in the laboratory of the water resources authority in Aden, according to the recommended methods mentioned in the literature. The analysis results showed that most of the well water is not suitable for drinking due to their contents of some chemical and physical properties were exceeded the maximum permissible limit for WHO (1997) and Yemen ministry of water and environment (YMWE,1999).
In this research, the level of heavy metals Cadmium (Cd), Chromium (Cr), Copper (Cu), Iron (Fe), Manganese (Mn), Lead (Pb) and Zinc (Zn) in groundwater in selected areas in the region of Al-Dhalia district, Al-Dhalia Governorate, Yemen. Sixteen groundwater samples were collected from the study area included 9 artesian wells samples and 7 of hand-dug wells, and analyzed for the presence of heavy metals using Atomic Absorption Spectrophotometer (AAS). The results of the analysis showed that the concentrations of Pb, Mn and Cu in most of the studied samples have exceeded the Yemeni and WHO standards for drinking water, while the concentrations of Fe, Cd, Cr and Zn in most of the studied samples were low and fall within the optimum specifications for local and WHO drinking water.
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