The deals with the determination of the possible radiological risks by the help of internationally approved health hazard addressed by field and laboratory gamma measurements performed for surface, adit and core samples from Gabal Abu Dabbab albite granite Ta-Nb-Sn mining area. The studied area is located some 50 km northwestern Marsa Alam city within the central Nubian Shield of Egypt. The field measurements were taken by portable RS-230 γ-ray spectrometer and the laboratory spectrometric analyzes were verified by HPGe detector for the radioactivity measurements of 238 U, 226 Ra, 232 Th and 40 K (Bq/kg) in the studied samples to assess their radiation hazards. Statistical depicting groups, summary statistics and two sample comparison tests (t-test and Mann-Whitney test) were used for statistical evaluations. The gamma-ray radioactivitylevels of surface samples reached 94.68, 61.64, 45.10 and 1051.62 Bq/kg for 238 U, 226 Ra, 232 Th and ⁴⁰K respectively, whereas adit samples reached 206.47, 113.16, 198.7, 939.43 Bq/kg and core samples reach to 108.23, 54.17, 43.47, 939.42 respectively. Almost values of the radiation hazard indices in the studied samples were under the health hazard limits.
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