Shanthi G, Thanka Kumaran J Thampi, Gnana Raj G Allen, Maniyan C G
Department of Physics, Women's Christian College, Nagercoil 629001, India.
Radiat Prot Dosimetry. 2012 Apr;149(3):327-32. doi: 10.1093/rpd/ncr235. Epub 2011 Jun 16.
It is necessary to obtain the transfer factor (TF) of long-lived radionuclides because soil type and vegetation can affect TF. We studied the food crops commonly consumed by the general public of Kanyakumari district of south India. The main focus was on rice, fruits, vegetables and tapioca because the consumption of these is high. The soil to rice TF for the radionuclides, (226)Ra, (232)Th, (238)U and (40) K are 8.8×10(-2), 14.2×10(-2), 5.8×10(-2) and 6.3×10(-2), respectively. The TF of tapioca for (226)Ra, (232)Th, (238)U and (40) K are 6.2×10(-2) , 11×10(-2), 1.9×10(-2) and 8.9×10(-2), respectively. For fruits and vegetables, the TFs are low. In the majority of the crops the non-edible parts accumulate more radionuclides than the edible parts.
获取长寿命放射性核素的转移因子（TF）很有必要，因为土壤类型和植被会影响转移因子。我们研究了印度南部坎亚库马里地区公众普遍食用的粮食作物。主要关注对象是大米、水果、蔬菜和木薯，因为这些食物的消费量很高。放射性核素（226）镭、（232）钍、（238）铀和（40）钾从土壤到大米的转移因子分别为8.8×10（-2）、14.2×10（-2）、5.8×10（-2）和6.3×10（-2）。木薯对（226）镭、（232）钍、（238）铀和（40）钾的转移因子分别为6.2×10（-2）、11×10（-2）、1.9×10（-2）和8.9×10（-2）。对于水果和蔬菜，转移因子较低。在大多数作物中，不可食用部分比可食用部分积累更多的放射性核素。
