Departamento de Energia Nuclear, Grupo de Radioecologia, Avenida Professor Luiz Freire, Cidade Universitária, Recife, Brazil.
Bull Environ Contam Toxicol. 2010 Aug;85(2):103-8. doi: 10.1007/s00128-010-0034-9. Epub 2010 May 30.
(210)Pb is widely distributed in the environment. In this context, the aim of this research has been: (1) to determine (210)Pb concentrations in milk and dairy products from farms located in the cities of Pedra and Venturosa in Pernambuco, Brazil; and (2) to calculate the dose due to the ingestion of (210)Pb in these products. The ion exchange resin method was used and the concentration of (210)Pb varied from 62 to 650 mBq l(-1) in fresh milk, from 202 to 1,494 mBq kg(-1) in curdled cheese and from 11 to 253 mBq l(-1) in milk whey. The estimated dose due to ingestion of milk and dairy products in this region was 0.2 Sv, which is at least two orders of magnitude above the maximum recommended levels.
(210)Pb 广泛分布于环境中。在此背景下，本研究旨在：(1) 测定巴西伯南布哥州佩德拉和文图罗萨市农场的牛奶和乳制品中的 (210)Pb 浓度；以及 (2) 计算这些产品中摄入 (210)Pb 产生的剂量。本研究采用离子交换树脂法，新鲜牛奶中 (210)Pb 的浓度为 62 至 650 mBq l(-1)，凝乳奶酪中为 202 至 1494 mBq kg(-1)，乳清中为 11 至 253 mBq l(-1)。该地区因摄入牛奶和乳制品而产生的估计剂量为 0.2 Sv，至少比建议的最高水平高两个数量级。
