Rayno D R
Sci Total Environ. 1983 Dec 1;31(3):219-41. doi: 10.1016/0048-9697(83)90078-5.
One of the major pathways of radiological exposure to man from uranium milling operations is through the beef/milk food chain. Studies by various investigators have shown the extent of uptake and distribution of 238U, 234U, 230Th, 226Ra, 210Pb, and 210Po in plants and cattle. These long-lived natural radioisotopes, all nuclides of the uranium decay series, are found in concentrated amounts in uranium mill tailings. In this paper, data from these investigations are used to estimate the dose to man from consumption of beef and milk from cattle that have fed on forage contaminated with the tailings. The estimated doses from this technologically enhanced source are compared with those resulting from average dietary intake of these radionuclides from natural sources.
铀矿开采作业对人类造成辐射暴露的主要途径之一是通过牛肉/牛奶食物链。不同研究人员的研究表明了植物和牛体内238U、234U、230Th、226Ra、210Pb和210Po的吸收和分布程度。这些长寿命天然放射性同位素，都是铀衰变系列的核素，在铀矿尾矿中大量存在。本文利用这些调查数据来估算食用以受尾矿污染的草料为食的牛所产牛肉和牛奶对人类造成的剂量。将这种技术增强源产生的估计剂量与这些放射性核素天然来源的平均饮食摄入量所产生的剂量进行比较。
