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Geostatistical Interpretation of Cs-137 and K-40 Result of the Lithosphere in the Vicinity of Youngkwang Nuclear Power Plant  

김경웅 (광주과학기술원 에너지환경센터)
이재석 (광주과학기술원 에너지환경센터)
문승현 (광주과학기술원 에너지환경센터)
박철승 (광주과학기술원 에너지환경센터)
고일원 (광주과학기술원 에너지환경센터)
고은정 (광주과학기술원 에너지환경센터)
조병옥 (영광원자력발전소 환경분석실)
정철영 (영광원자력발전소 환경분석실)
전수열 (영광원자력발전소 환경분석실)
Publication Information
Economic and Environmental Geology / v.35, no.6, 2002 , pp. 545-552 More about this Journal
Abstract
In order to investigate the influence of nuclear power plant operation on its nearby environment, soil, stream and marine sediment samples were collected in the vicinity of the Youngkwang Nuclear Power Plant in Korea, and analyzed for artificial and natural radionuclide radioactivity. From the analytical result, Cs-137 was detected in most soil samples. but it may have been derived fiom past nuclear weapon tests because Cs-134 having short half-live was not detected. The radioactivities of Cs-137 in the sediment samples were also detected which are within the normal range in the sediments based upon the published literature between 1997 and 1999. For the quality control of radioactivity analysis of environmental samples, sets of marine sediments in the Gamami area were analyzed using two HPGe Gamma-ray Spectroscopes (30% and 45%) according to the geostatistical sampling strategy, and Cs-137 and K-40 results were interpreted by analysis of variance (ANOVA). In the two-way ANOVA, variances derived from the geochemical variation were significant, but errors from sampling and analytical procedures are negligible. In conclusion. all the radioanalytical procedures of this study including sampling are validated to be acceptable.
Keywords
Youngkwang nuclear power plant; gamma-ray spectroscopy; quality control of analytical result; analysis of variance; Cs-137 and K-40;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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