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Distribution of Some Environmental Radionuclides in Rocks and Soils of Guemjeong-Gu Area in Busan, Korea  

Lee, Hyo-Min (Division of Earth Environmental System, Pusan National University)
Moon, Ki-Hoon (Division of Earth Environmental System, Pusan National University)
Kim, Jin-Seop (Division of Earth Environmental System, Pusan National University)
Ahn, Jung-Keun (Department of Physics, Pusan National University)
Kim, Hyun-Chul (Department of Physics, Inha University)
Publication Information
The Journal of the Petrological Society of Korea / v.17, no.3, 2008 , pp. 179-190 More about this Journal
Abstract
The distribution characteristics of some major environmental radionuclides ($^{40}K$, $^{228}Ac$, $^{226}Ra$, $^{222}Rn$) and U in rocks, soils and soil gas were studied at Geumjeong-Gu, Busan, Korea. The activities of radionuclides in granitic rocks are decreased in the odor of $^{40}K$>thorium decay series>uranium decay series. This reveals that Th was relatively more enriched in granitic rocks than U. The U content and activity of $^{226}Ra$ and $^{228}Ac$, however, don't reflect the fractionation sequence of granitic rocks in the study area. The activities of all these radionuclides and U content in soils are generally higher than in rocks, and their distribution in rocks, soils and soil gas show very low co-relationship. These facts indicate that the activities of radionuclides in soil and soil gas were greatly affected by leaching and adsorption properties of the radionuclides and their parents during weathering and pedogenetic process rather than their concentrations in parent rocks.
Keywords
Busan; activity; environmental radionuclide$^{226}Ra$$^{222}Rn$; uranium;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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