居住在伯南布哥/巴西高自然本底地区居民的铅-210辐照剂量估计

Q4 Medicine

International Journal of Low Radiation Pub Date : 2013-05-30 DOI:10.1504/IJLR.2013.054164

J. Costa, E. Silva, A. Amaral, C. Silva, J. Santos

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引用次数: 1

摘要

本工作旨在:(a)测定巴西伯南布哥州两个高自然辐射地区居民尿液样本中的210Pb浓度;(b)估计由于放射性核素掺入而对骨骼产生的辐射剂量。为此，研究人员对健康和非吸烟者的尿液样本进行了研究。采用离子交换树脂技术分离Pb-210，然后在堪培拉Tennelec S5E探测器上进行β计数。一个地区居民尿液样本中210Pb的浓度在65至267 mBq之间变化。另一个为62 ~ 440 mBq.l-1。据估计，第一个地区居民的骨骼年最大剂量约为0.81 nSv，第二个地区居民的骨骼年最大剂量约为1.33 nSv。在本报告中，介绍并讨论了所采用的方法、结果和辐射引起的健康影响。

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Pb-210 irradiation dose estimation for inhabitants living in high natural background areas on Pernambuco/Brazil

This work was designed to: (a) determine 210Pb concentration in human urine samples of inhabitants of two regions with high natural radiation in the state of Pernambuco – Brazil; (b) estimate radiation dose in bones as a result of this radionuclide incorporation. For this, urine samples of healthy and non-smoker subjects were studied. Pb-210 was separated by ion-exchange resin technique followed by beta counting, which were conducted in a Canberra Tennelec S5E detector. Concentrations of 210Pb in the urine samples of inhabitants from one region varied from 65 to 267 mBq.l–1, while the other ranged from 62 to 440 mBq.l–1. The maximum annual dose estimated in bones for individuals from the first region was about 0.81 nSv and about 1.33 nSv for inhabitants of the second one. In this report, the methodology employed, the results and the radiation-induced health effects are presented as well as discussed.

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来源期刊

International Journal of Low Radiation Environmental Science-Health, Toxicology and Mutagenesis

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期刊介绍： The IJLR is a peer-reviewed journal dedicated to the publication of research articles, review papers and technical notes in all domains related to low-dose radiation, among which are the biological and health effects in humans and the biota, in vitro and in vivo research on low radiation effects, regulatory and policy aspects, risk estimation and public perception.