Present book is based on the Ph.D Thesis which worked on the trace elemental analysis kidney effected uddanam area in Andhra Pradesh using one of the nuclear analytical technique like Energy Dispersive X-ray flourescence (EDXRF). The work carried out on the daily consumed food products and soil samples in the kidney affected uddanam area. The trace elements like Pb,As, Cu,Zn,P,Fe,Ca,K,S,Se,Cd,Hg,Br, impact on the kidney and health is analysed.