An experimental analysis of the contribution of 210Po and of 210Po produced by 210Pb decay to the gross alpha-particle activity of water samples

被引：5

作者：

Arndt, Michael F. ^{[1
]}

West, Lynn E. ^{[1
]}

机构：

[1] Univ Wisconsin, Wisconsin State Lab Hyg, Div Environm Hlth, Madison, WI 53718 USA

来源：

HEALTH PHYSICS | 2008年 / 95卷 / 03期

基金：

美国国家环境保护局;

关键词：

alpha particles; environmental radioactivity; Po-210; water;

D O I：

10.1097/01.HP.0000315807.81067.04

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The contribution of Po-210 and of Po-210 produced by Pb-210 decay to the gross alpha-particle activity of water samples by U.S. Environmental Protection Agency Method 900.0 is investigated as a function of residue mass and geometry and time between sample collection and analysis. It is shown that these factors can cause the contribution to gross alpha-particle activity of Po-210 to be up to 2.0 and 1.1 times the initial Po-210 activity for grab and quarterly composite samples, respectively, and can cause the contribution to gross alpha-particle activity, of Po-210 from Pb-210 decay to be up to 1.1 times and 1.5 times the Pb-210 activity for grab and quarterly composite V, samples, respectively. It is also shown qualitatively that at least for some residues, there is a loss of polonium due to volatilization when the sample is heated over a name.

引用

页码：310 / 316

页数：7

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