In this study, soil-to-plant transfer factor and annual organ equivalent dose due to ingestion of natural radionuclides in 13 popular food crop samples in Ho Chi Minh city, Vietnam were estimated. The obtained data show that the radioactive elements transported from soil to plants play an essential role as indicators for the nutritional needs of plant and the ability to accumulate radioisotopes and heavy metal elements for environmental decontamination. It is found that B. alba and C. gigantean is useful for decontamination of high content potassium in soil, otherwise, P. fruticosa and C. gigantean may be used for soil with high concentration of ²¹⁰Pb and ²²⁶Ra. In addition, biological effects of the plant ingestion in human body were assessed. The doses due to ingestion of food crop samples varied from organ to organ, depending on the organotrophic properties of the radionuclides. For examples, equivalent dose for ⁴⁰K in large intestine is higher than other organs. In contrast, equivalent dose for ²³⁸U, ²²⁶Ra, ²¹⁰Pb and ²³²Th were mostly at bone surface. In general, the obtained dose values of lower than the average value recommended by UNSCEAR for food crop ingestion pose no threat to the public’s health. However, close investigations are needed in the near future.

在这项研究中，估计了越南胡志明市13种流行的粮食作物样品中由于摄入天然放射性核素而引起的土壤-植物转移因子和年度器官当量剂量。获得的数据表明，从土壤转运到植物的放射性元素在指示植物的营养需求以及积累放射性同位素和重金属元素以进行环境净化的能力方面起着至关重要的作用。发现白菜双歧杆菌和巨角梭菌可用于土壤中高含量钾的去污，否则金紫菜和巨角梭菌可用于高浓度²¹⁰ Pb和^226的土壤。镭 此外，还评估了人体摄入植物的生物学效应。摄入食用农作物样品的剂量因器官的不同而异，具体取决于放射性核素的有机营养特性。例如，大肠内⁴⁰ K的等效剂量高于其他器官。相反，²³⁸ U，²²⁶ Ra，²¹⁰ Pb和²³² Th的等效剂量主要在骨表面。通常，所获得的剂量值低于食典委建议的用于食用粮食作物的平均值，这不会对公众健康构成威胁。但是，在不久的将来需要进行仔细的调查。