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http://dx.doi.org/10.7857/JSGE.2012.17.2.022

A Preliminary Study for the Analytical Method and Environmental Characteristics of Radium-226 in Groundwater  

Jeong, Do-Hwan (National Institute of Environmental Research)
Kim, Moon--Su (National Institute of Environmental Research)
Noh, Hoe-Jung (National Institute of Environmental Research)
Yoon, Yoon-Yeol (Korea Institute of Geoscience and Mineral Resources)
Kim, Dong-Soo (National Institute of Environmental Research)
Lee, Young-Joon (National Institute of Environmental Research)
Ju, Byoung-Kyu (National Institute of Environmental Research)
Hong, Jung-Ki (National Institute of Environmental Research)
Kim, Tae-Seung (National Institute of Environmental Research)
Publication Information
Journal of Soil and Groundwater Environment / v.17, no.2, 2012 , pp. 22-27 More about this Journal
Abstract
$^{226}Ra$ in groundwater could be analyzed by various methods. LSC (liquid scintillation counter) is used to measure its activity of Ba co-precipitates with Hisafe III scintillation cocktail solution. Counting efficiency was obtained using NIST $^{226}Ra$ standard solution in triplicate and calculated $^{226}Ra$ concentration using the efficiency values. $^{226}Ra$ values of 19 groundwaters having Gross-${\alpha}$ concentrations of more than 5 pCi/L ranged from ND (${\leq}$ 0.1 pCi/L) to 1.18 pCi/L. Geologic settings of the 19 areas are composed of granitic rocks of Pre-Cambrian and Jurassic and Cretaceous, gneiss (schist) of Pre-Cambrian, and volcanic rocks of Cretaceous. No relationship was shown among $^{226}Ra$ a concentrations and in-situ water quality data, and Gross-${\alpha}$, uranium, radon concentrations.
Keywords
$^{226}Ra$; LSC; Gross-${\alpha}$; Uranium; Geologic setting;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
연도 인용수 순위
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