Natural radionuclide and 137Cs activity concentration in soils of the Brazilian State of Sergipe and their correlation with environmental characteristics. Braz. J. Radiat. Sci. [Internet]. 2024 Sep. 30 [cited 2025 Jul. 17];12(3):e2525. Available from: https://bjrs.org.br/revista/index.php/REVISTA/article/view/2525