“…The trace elements in the measured samples are Rb, I, La, Sc, Th, Sm, Hf, Tb, U, Ta, Cs and Au. Figure The main sources of Rare earth elements like La, Sm and Tb are wind-blown soil, motorized vehicles, industrial activities, stoves, incinerators, aerosol sprays, fumes from paint, and varnish [6]. It is clear that the Rare earth elements have symmetrical geochemical properties in the sampling sites; the highest concentration was measured in Al Shuhadaa followed by Shubra El Kheima power station.…”