1. Akpolile FA, Ugbede FO (2019) Natural radioactivity study and radiological risk assessment in surface water and sediments from Tuomo River in Burutu, Delta State Nigeria. J NAMP 50:267–274
2. UNSCEAR (2000) United Nations Scientific Committee on the effect of Atomic Radiation: exposures from natural radiation sources. Report to General Assembly, with Scientific Annexes. United Nations, New York
3. Innocent AJ (2012) Human activities and background radiation. J Appl Sci Technol Namoda Techscope 1:30–39
4. Alserousy FA, Almeelbi T, Khan A, Barakata MA, Al-zahrani JH, Alali W (2018) Estimation of natural radioactive and heavy metals concentration in underground water. J Radiat Res Appl Sci 1(4):373–378
5. Ibikunle SB, Ajayi OS, Arogunjo AM, Salami AA (2016) Radiological assessment of dam water and sediments for natural radioactivity and its overall health detriments. Ife J Sci 18(2):551–559