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Contents of natural radium-226 and lead-210 in foods produced within the Russian territory

机译:俄罗斯境内生产的食品中天然镭226和铅210的含量

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Dynamical examination of contents of the observed natural radionuclides in prime foodstuffs demonstrated their relative stability. Generally, ~(210)Pb and ~(226)Ra specific activities in foodstuffs depend upon the food type and options of agriculture management. Many-year researches show that average specific activities of ~(210)Pb and ~(226)Ra for different foodstuffs vary over the range 0.04-0.15 Bq/kg and 0.02-0.08 Bq/kg. Soil dependence of ~(210)Pb and ~(226)Ra contents in foodstuffs has not been revealed. Taking into account the food patterns of the Russian population, the highest intake of ~(210)Pb and ~(226)Ra is due to ingestion of bread, meat and drinking water. Annual effective internal doses are about 50μSv/a.
机译:对主要食品中观察到的天然放射性核素含量的动态检查表明了它们的相对稳定性。通常,食品中〜(210)Pb和〜(226)Ra的比活取决于食物类型和农业经营方式。多年的研究表明,不同食品的〜(210)Pb和〜(226)Ra的平均比活度在0.04-0.15 Bq / kg和0.02-0.08 Bq / kg的范围内变化。尚未发现食品中〜(210)Pb和〜(226)Ra含量对土壤的依赖性。考虑到俄罗斯人口的食物类型,〜(210)Pb和〜(226)Ra的最高摄入量是由于面包,肉和饮用水的摄入。年度有效内部剂量约为50μSv/ a。

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