Concentrations of 238U in selected Thai spices and the related dose assessment
| Autor: | J. Khunsamut, W. Kulsawat, P. Nochit |
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| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | Journal of Physics: Conference Series. 1719:012077 |
| ISSN: | 1742-6596 1742-6588 |
| DOI: | 10.1088/1742-6596/1719/1/012077 |
| Popis: | Finger root, galangal, turmeric, and lemon grass are commonly used in Thai cuisine as spices and herbs. The radionuclide uranium accumulates in human diet can has toxic effects in human health such as kidney damage and neurological disorders. In this study, the concentrations of 238U in some selected spices commonly used in Thailand were determined and the annual effective doses (AED) were assessed. Four spices consisted of galangal, turmeric, lemon grass and finger root were sampling from Bang Krathum district, Phitsanulok during 2017-2018. The radioactivity of 238U in these spice samples were varied from 0.015 (below detection limit) to 2.79 Bq/kg fresh. The highest activity was recorded in finger root (2.79 ± 0.14) while the lowest was lemon grass (0.34 ± 0.06). The estimated AED determined in this study due to consumption of spices ranges from 0.004 to 0.781µSv/y and the total value for all four spices was 1.934 µSv/y. It was found that AED in this study is far below the International standard of average radiation dose of 290 µSv/y received per person worldwide due to intake of natural radionuclides in food. The results revealed insignificant radiological health hazard to the public due to the consumption of spices via foods. Based on these results, the spices samples from the studied area are considered radiological safe for human consumption. The results provide baseline values which may be useful in establishing rules and regulations relating to radiation protection. |
| Databáze: | OpenAIRE |
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