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Transfer of Natural Radionuclides from Soil to Plants in Nasarawa, Nasarawa State, Nigeria. |
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PP: 81-86 |
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doi:10.18576/jrna/070209
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Author(s) |
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U. Rilwan,
M. Jafar,
M. Musa,
M.M. Idris,
J. Waida,
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Abstract |
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| Natural radioactivity and its corresponding gamma radiation exposure demonstrate geological and geographical dependence. Such materials exist at varying levels in different regions worldwide. Primordial isotopes of 226 Ra, 232Th and 40k are the main sources of external radiation on earth. The research aimed at assess the Transfer factor of natural radionuclides from soil to plants and grass in the Nasarawa, Nasarawa state, Nigeria. The results revealed that, the plant transfer factor of 40K in Crop has the average of 2.02±0.17 which is higher compared to the IAEA recommended value for soil to plant transfer factor of 40K of 1.4. On 226Ra, IAEA has greater value for soil-to-plant TF for 226Ra compared to the present study which was found to be 0.84±0.8. In general, the values for 232Th TF (1.18±0.72) were lower than those values reported in the default values suggested by IAEA. The mean concentration of all the radioisotopes in the crop may not cause instant health hazard to the public but there may be a long-term accumulative effect following present dose intake from the consumption of the crop (cassava). |
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