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자원환경지질 = Economic and environmental geology v.40 no.4 = no.185, 2007년, pp.347 - 360   피인용횟수: 2

경남 고성 구리광산 지역의 중금속 오염특성
Pollution Property of Heavy Metal in Goseong Cu Mine Area, Kyungsangnam-do, Korea

정철현    (대한광업진흥공사 개발사업팀   ); 박현주    (목포대학교 환경공학과   ); 정일현    (목포대학교 환경공학과   ); 나춘기    (목포대학교 환경공학과  );
  • 초록

    고성군에 위치한 폐구리광산의 중금속 오염범위와 정도 및 환경위해성을 평가하기 위하여 광산지역으로부터 토양과 벼를 채취하여 중금속 함량을 분석하였다. 중금속 함량은 논토양에 비해 산토양에서 훨씬 높았다. 중금속 전함량은 산토양에서 Cu>Zn>Pb>As>Cr>Cd, 논토양에서 Zn>Pb>Cu>Cr>As>Cd 순으로 감소하였으며, 0.1/1N HCl에 의한 중금속 용출량은 산토양에서 Cu>Pb>Zn>As>Cd>Cr, 논토양에서 Pb>Cu>Zn>As>Cd>Cr 순으로 나타났다. 중금속 용출비는 시료채취지점에 따라 매우 다양하였지만 평균적으로는 Cd(16%)>Pb(10%)>Cu(9%)>As(4.5%)>Zn-Cr( ${\le}2.5%$ )의 순이었다. 조사대상 토양들은 지각평균값에 비해 중금속이 부화되어 있으며 그 순서는 $As{\ge}Cd>Pb>Zn>Cu>Cr$ 이었다. 토양의 중금속 전함량 또는 용출량으로부터 계산한 오염지수는 중금속 오염이 폐구리광산 특히 삼산제일광산 주변의 산토양에 국한되어 있음을 나타내었다. 현미 중의 중금속함량은 As $nd{\sim}0.87mg/kg,\;Cd\;0.02{\sim}0.34mg/kg,\;Cu\;1.01{\sim}6.25mg/kg,\;Mn\;13.4{\sim}43.2mg/kg,\;Pb\;0.09{\sim}2.83mg/kg$ 및 $Zn\;16.5{\sim}79.1mg/kg$ 으로 심각하게 오염된 수준은 아니었다. 토양 pH와 함께 중금속의 용출 및 분포특성들은 이 지역 중금속 오염의 대부분이 중금속의 용해 순환보다는 폐광석과 맥석광물의 쇄설성 이동에 의해 진행되고 있음을 시사하였다.


    In order to evaluate the degree and extent of heavy metal pollution and the environmental impacts of abandoned Cu mines in Goseong-gun, soils and paddies were collected from the mine area and have been analysed for heavy metal contents. The heavy metal contents were much higher in mountain soils than in paddy soils. Total content of heavy metals decreased in order of Cu>Zn>Pb>As>Cr>Cd in mountain soils whereas Zn>Pb>Cu>Cr>As>Cd in paddy soils. The extractable amount of heavy metals by 0.1/1N HCl decreased in order of Cu>Pb>Zn>As>Cd>Cr in mountain soils whereas Pb>Cu>Zn>As>Cd>Cr in paddy soils. Although the extraction ratios were highly various depending on the sampling site, their average values were in order of Cd(16%)>Pb(10%)>Cu(9%)>As(4.5%)>Zn-Cr( ${\le}2.5%$ ). The soils investigated were enriched in heavy metals relative to the averages of earth crust as In order of $As{\ge}Cd$ Zn>Cu>Cr. Pollution index calculated from total or extractable heavy metals of soils indicated that the heavy metal pollution was restricted to mountain soils around abandoned Cu mines, especially the Samsan I mine. The metal contents of brown rice showed no significantly contaminated level as follows; As $nd{\sim}0.87mg/kg,\;Cd\;0.02{\sim}0.34mg/kg,\;Cu\;1.01{\sim}6.25mg/kg,\;Mn\;13.4{\sim}43.2mg/kg,\;Pb\;0.09{\sim}2.83mg/kg,\;and\;Zn\;16.5{\sim}79.1mg/kg$ . From the extraction and dispersion properties of heavy metal with the soil pH ( $4.5{\sim}7.8$ ), it can be deduced the conclusion that the heavy metal pollution is spreading in the study area mainly by the detrital migration of waste ore and gangue minerals rather than the dissolution and circulation of heavy metal.


  • 주제어

    고성구리광산 .   토양 .   현미 .   중금속 .   부화지수 .   오염지수.  

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  • 이 논문을 인용한 문헌 (2)

    1. Cho, Kang-Hee ; Kim, Bong-Ju ; Choi, Nag-Choul ; Park, Cheon-Young 2014. "The Variation of Cu Recovery by Electrowinning Conditions and Their Mineralogical Characteristics from Cathodic Deposition-powdered Copper" 韓國鑛物學會誌 = Journal of the mineralogical society of Korea, 27(4): 183~195     
    2. Joo, Heui Sig ; Cho, Young Son ; Chun, Hyun Sik 2014. "An Investigation on the Environmental Factors of Certified Organic and Non-pesticide Paddy Soils Cultivating Rice at Goseong-Gun" 생명과학회지 = Journal of life science, 24(4): 403~410     

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