• Title/Summary/Keyword: 폐금속광산

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폐금속광산 토양오염 조사 사례

  • 신종기
    • Proceedings of the Korean Society of Soil and Groundwater Environment Conference
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    • 2002.11a
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    • pp.95-116
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    • 2002
  • 본 토양오염실태조사 사례는 환경부(토양보전과)에서 선정한 전국 158개 폐금속광산에 대한 정밀조사사업(2001-2003년) 중 1차년도 사업으로 수행된 경상북도, 경상남도, 대구광역시, 부산광역시 등 4개 광역자치단체(19개 지방자치단체)에 소재하는 영남권역 32개 폐금속광산 토양오염실태조사 결과의 일부로서 경남 거제시 하청면에 소재하는 동아광산에 대하여 현지조사를 실시하고 토양 및 수질오염 실태를 파악, 오염지역에 대한 적절한 복원방법을 제시한 연구사례이다.

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도곡 Au-Ag-Cu광산 및 화천 Au-Pb-Zn광산 주변지역 중금속의 화학적 형태 및 오염 특성

  • 이성은;전효택;이진수
    • Proceedings of the KSEEG Conference
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    • 2003.04a
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    • pp.93-96
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    • 2003
  • 국내 휴ㆍ폐금속광산 주변지역을 대상으로 광산활동으로 인한 독성 중금속 원소들의 주변 환경 유출과정 및 정도를 규명하여 생활에 미치는 환경오염의 가능성을 조사하는 환경지구 화학적 연구가 지속적으로 이루어지고 있다. 이들 중의 대부분은 적절한 환경복원시설이 설치되지 않아, 방치된 광미와 폐석에 의해 주변지역의 환경오염이 발생되는 것으로 보고되고 있다. 국외의 경우 광산활동의 주요한 폐기물인 광미와 폐석에 대한 매립 및 처리 모델 개발, 침출수 관리 등 다양한 환경오염 방지 및 복구 연구가 수행되고 있다. (중략)

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Comparative Study on the Human Risk Assessment of Heavy Metal Contamination between Two Abandoned Metal Mines in Korea (국내 두 폐금속 광산의 중금속오염 인체위해성평가 비교)

  • Lim, Tae-Yong;Lee, Sang-Woo;Park, Mi Jeong;Lee, Sang-Hwan;Kim, Soon-Oh
    • Journal of Korean Society of Environmental Engineers
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    • v.37 no.11
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    • pp.619-630
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    • 2015
  • This study was conducted to propose the methodology of human risk assessment specialized to domestic mine areas and to quantify the human risk of heavy metal (As, Cd, Cu, Pb, and Zn) contamination around two abandoned metal mines. To attain the goals, we established a relevant exposure scenario, including 7 exposure pathways and extracted a variety of exposure factors reflecting the characteristics of inhabitants around abandoned metal mine areas. Finally, carcinogenic and non-carcinogenic risks were compared between two areas, exposure pathways, heavy metal contaminants, and receptors. The total excess carcinogenic risks of two mine areas of concern were calculated to be larger than the acceptable carcinogenic risk ($1{\times}10^{-6}$), indicating those two areas are not safe for carcinogenic hazard. In addition, the hazard indices of two areas were computed to be higher than unit risk (1), suggesting that the areas of concern have non-carcinogenic risk. Ingestion of crop and intake of groundwater were evaluated to be main exposure pathways contributing to carcinogenic and non-carcinogenic risks within the areas. Also, the results show that carcinogenic and non-carcinogenic hazards were mostly attributed to As and As, Cd, and Pb, respectively.

Risk Assessment of Heavy Metals in the Vicinity of the Abandoned Metal Mine Areas (폐금속광산지역 중금속의 위해성 평가)

  • Lee, Jin-Soo;Kwon, Hyun-Ho;Shim, Yon-Sik;Kim, Tae-Heok
    • Journal of Soil and Groundwater Environment
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    • v.12 no.1
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    • pp.97-102
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    • 2007
  • An environmental survey from three abandoned metal mine areas was undertaken on to assess the risk of adverse health effects on human exposure to heavy metals influenced by past mining activities. Tailings contained high concentrations of heavy metals may have a impact on soils and waters around the tailing piles. In order to perform the human risk assessment, chemical analysis data of soils, rice grains and waters for As, Cd, Cu and Pb have been used. The HQ values for heavy metals via the rice consumption were significantly higher compared with other exposure pathways in all metal mine areas. The resulting HI values in three mine areas were higher than 9.0, and their toxic risk due to rice ingestion was strong in these mine areas. The cancer risk of being exposed to As by the rice consumption from the A, B and C mine areas was $5.1\;{\times}\;10^{-3}$, $6.8\;{\times}\;10^{-3}$ and $3.1\;{\times}\;10^{-3}$, respectively. The As cancer risk via the exposure pathway of rice ingestion from these mine areas exceeds the acceptable risk of 1 in 10,000 set for regulatory purposes. Thus, the daily intakes of rice by the local residents from these mine areas can pose a potential health threat if exposed by long-term As exposure.