Helmholtz Zentrum München, German Research Center for Environmental Health, Research Unit Medical Radiation Physics and Diagnostics, Ingolstädter Landstrasse 1, 85764 Neuherberg, Germany.
Environ Int. 2012 Feb;39(1):122-7. doi: 10.1016/j.envint.2011.10.010. Epub 2011 Nov 17.
In the aftermath of the Chernobyl nuclear power plant accident, a research group of the Italian National Institute of Health (Istituto Superiore di Sanità) carried out two research programmes on maternal milk. One concerned the transfer of caesium radionuclides from the diet to breast milk. In the other, the activity concentrations of (137)Cs were also determined in urine and placenta. The first study estimated the mothers' average (137)Cs dietary intake, in the second study the intake was evaluated individually for each subject. In 2004, the International Commission on Radiological Protection published modified systemic biokinetic models which also account for transfer to breast milk. The model for caesium radionuclides was implemented and tested by the authors with the experimental data described above. A good agreement was obtained between measured data and model simulations of (137)Cs activity concentration in human milk. The model, however, tends to systematically overestimate (137)Cs activity concentration in urine, in which case the agreement is to be considered satisfactory in terms of order of magnitude.
在切尔诺贝利核电站事故发生后，意大利国家卫生研究所（Istituto Superiore di Sanità）的一个研究小组开展了两项有关母乳的研究计划。其中一项研究关注的是放射性铯核素从饮食到母乳中的转移。另一项研究则测定了尿液和胎盘（137）Cs 的活度浓度。第一项研究估计了母亲们的平均（137）Cs 膳食摄入量，第二项研究则为每个个体进行了个体摄入量评估。2004 年，国际辐射防护委员会发布了经过修正的全身生物动力学模型，这些模型也考虑了向母乳中的转移。作者使用上述实验数据实施并测试了铯放射性核素模型。在人乳中（137）Cs 活度浓度的测量数据与模型模拟之间取得了良好的一致性。然而，该模型倾向于系统地高估尿液中（137）Cs 的活度浓度，在这种情况下，从数量级的角度来看，该模型的一致性被认为是令人满意的。
