Laboratory of Material Sciences, Environment and Solar Energy (LASMES), Université Félix Houphouë
t-Boigny, Abidjan, Cô
te d’Ivoire;
Higher Teacher Training College (ENS), Abidjan, Cô
te d’Ivoire;
Nuclear Radiation Protection, Safety and Security Authority (ARSN), Abidjan, Cô
te d’Ivoire;
Center for Atomic, Molecular Physics and Quantum Optics (CEPAMOQ), University of Douala, Douala, Cameroon;
Radionuclide Concentration; Gamma-Ray Spectrometry; Radium Equivalent Activity; Lagoon Sand; Abidjan;