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ORIGINAL ARTICLE
Year : 2016  |  Volume : 39  |  Issue : 2  |  Page : 83-90

Study of the radiological parameters associated with small-scale mining activities at Dunkwa-on-Offin in the central region of Ghana


1 Department for Nuclear Safety and Security, Graduate School of Nuclear and Allied Sciences, P. O. Box AE1, Atomic, Accra, Ghana
2 Radiation Protection Institute, Atomic Energy Commission, P. O. Box LG 80, Accra, Ghana

Correspondence Address:
Marfo Emmanuel
Graduate School of Nuclear and Allied Sciences, P.O. Box AE 1, Atomic, Accra
Ghana
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0972-0464.190390

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Studies have been carried out to assess the radiological exposure to the general public from small-scale mining activities in Dunkwa-on-Offin and its surrounding communities. Direct gamma spectrometry was used to determine the concentration of naturally occurring radionuclides 226 Ra (238 U),232 Th, and 40 K in the soil samples. The mean activity concentrations measured for 226 Ra (238 U),232 Th, and 40 K in the soil samples were 25.4 ± 11.1, 29.4 ± 15.6, and 225.9 ± 93.8 Bq/kg, respectively. The total annual effective dose to the public was estimated to be 0.05 mSv. The results, thus, indicate an insignificant exposure of the general public. The radiological parameters assessment as a result of 226 Ra (238 U),232 Th, and 40 K was also carried out. Data established from the study could aid in formulating guidelines, to educate and create awareness on the levels of naturally occurring radionuclides resulting from small-scale mining activities in Dunkwa-on-Offin and Ghana as a whole.


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