Elemental quantification and radioactive characterization of soil from Douala Bassa Area: littoral region of Cameroon using EDXRF and γ-spectrometry technics
Guembou Shouop, Cébastien Joel; Moyo, Maurice Ndontchueng; Mekongtso, Eric Jilbert Nguelemet al.
2019 • In Environmental Research Communications, 1 (6), p. 065001
[en] The objectives of the present work were to characterize the investigated soil using Energy Dispersive X-Ray Fluorescence (EDXRF) and to evaluate the radioactivity concentration of the primordial radionuclides with gamma-ray spectrometry based High Purity Germanium (HPGe) detector. Soil characterization using EDXRF in the present study gives an overview of the geological origin or provenience of the investigated area. As a result, the analysed soil samples can be classified chemically as Fe-soil and are illustrative dregs from the Continental margin because of high concentration of Fe (where the concentration of Fe in different soil sample ranged from 14.78% to 22.26 %) in all the investigated samples. The plotting of Al2O3/SiO2 (%) as a function of Fe2O3 and MgO (%) for the eighteen investigated samples points from Douala and a diagram for the tectonic discrimination of sediment provenance evidenced that all soil samples are residue from Passive margins. The observed activity concentration profile of the primordial radionuclides and the calculated radium equivalent activity show that no significant radiological risk can be observed for inhabitance within the study areas. As regard to that, the obtained results of the two analytical techniques can be seen as a baseline data for future investigations about elemental composition and radioactivity background levels in the study area.
Chene, Grégoire ; Université de Liège - ULiège > Département de physique > Spectroscopie atomique et nucléaire, archéométrie
Kayo, Styve
Strivay, David ; Université de Liège - ULiège > Département de physique > Spectroscopie atomique et nucléaire, archéométrie
Language :
English
Title :
Elemental quantification and radioactive characterization of soil from Douala Bassa Area: littoral region of Cameroon using EDXRF and γ-spectrometry technics
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