Simulation of <137>Cs and <90>Sr Behavior in grassland ecosystems of the semipalatinsk test site and prediction of radiation doses for the population

摘要：

A mathematical model describing <137>Cs and <90>Sr behavior in grassland ecosystems of the Semipalatinsk Test Site was developed. Assessment of radioecological situation at the test site showed that the concentrations of these radionuclides in milk and meat of horses and sheep grazing at sites of high contamination may exceed permissible values. Furthermore, we calculated doses of internal and external exposure of the population resulting from the distribution of <137>Cs and <90>Sr in the grazing areas of horses and sheep. According to these calculations the highest doses are received by shepherds using the most contaminated areas near the technical site Bala pan as pasture.

关键词： Semipalatinsk Test Site radionuclides migration models exposure dose

作者: S. I. Spiridonov M. K. Mukusheva O. A. Shubina V. M. Solomatin S. A. Baranov

作者单位: All-Russian SRI of Agricultural Radiology and Agroecology, Obninsk, 249032, Russia National Nuclear Center of the Republic of Kazakhstan, Kurchatov, 490021, Republic of Kazakhstan

会议类型: 国际会议

会议名称: 第九届痕量元素生物地球化学国际会议(9th International Conference on the Biogeochemistry of Trace Elements)

会议地点: 北京

会议语种:英文

页码: 445-446

在线出版日期: 2007-07-15（万方平台首次上网日期，不代表论文的发表时间）