المجلة الدولية للعلوم والتقنية

Abstract Groundwater (wells water) is the main and primary source of water in the Bir El-Ghanam area, although it is not suitable for drinking because of the high salt content in it. Therefore, this study aims to estimate the level of the three heavy elements (manganese, zinc, and chromium). This study was conducted in the period between (May and June 2021). Six samples were taken from the water wells of the study area and analyzed. The results of this study showed that the values of manganese ranged between (0.040 - 0.097 mg), and the concentration values of zinc ranged between (0.065 - 0.148 mg), while the chromium element was between (0.010 - 0.033). mg) and all of them were within the permissible limits according to the Libyan standards as well as the World Health Organization (WHO).