This paper deals with the quantitative determination of Pb, Zn, Cu and Fe concentrations in nails of male and female of Kassala State inhabitants . The levels of Pb, Zn, Cu and Fe in fingernails, assayed by X-Ray Fluorescence (XRF) spectroscopy. All the obtained mean values of concentrations of four elements shows that Pb were high level in Kassala, Zn high level in Hameshkoreb, Wad elhelaw and Telkok , Cu were level in Shamal eldelta ,Fe high level in Telkok.
