“…In addition to cosmic radiation, the radioactive elements are produced by the decay of the uranium chains U-235, U-238, and thorium Th -232, as well as potassium 40-K [1,2]. Building materials, water, air, soil, rocks, petroleum, chemical, metallurgical, cement, and fertilizer products all contain radioactive elements [3][4][5]. Whether they are created artificially or naturally, the various radioactive elements found in the environment are similar to other non-radioactive elements.…”