Abstract
Author(s): Azza Fahmy El Wakil, Karem Abd-Elazeem Gaber, Bataa Hussein Ali, Mohamed El-Sayed El-Nagdy
Six groundwater well samples were collected from wadi El Sieh and wadiNasieb, southwestern Sinai, Egypt. The radioactive and heavy toxic elements were measured on the collected samples using ICP-OES. The result for radioactive measurements show that the level of uranium contamination in five wells was exceeds the maximum acceptable concentration guided by WHO. The pollution indices for heavy toxic elements were calculated. The calculation show that the contamination index in all wells suffers a medium contamination, the ecological risk factor of five groundwater wells suffer a considerable ecological risk contamination by toxic heavy elements and one well only have a moderate risk factors. Geo accumulated index (unpolluted to moderate) for Pb. Cd, Cr and Ni have unpolluted geo accumulated index for all groundwater wells. The effect of pH on radioactive and toxic heavy element solubility on the groundwater was studied. The study shows that R2 for uranium and thorium concentration on groundwater have a medium relation with pH and there are no relation between toxic heavy elements and groundwater pH
