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Environmental Assessment of Heavy Metals Anna Abandoned Metalliferous Mine in Korea  

정명채 (세명대학교 자원환경공학과)
정문영 (세명대학교 자원환경공학과)
최연왕 (세명대학교 토목공학과)
Publication Information
Economic and Environmental Geology / v.37, no.1, 2004 , pp. 21-33 More about this Journal
Abstract
The objective of this study is to review of environmental assessment of heavy metals derived from various metalliferous mines in Korea. As a results of national wide research for heavy metal contaminations in the vicinity of metalleferous mines, the main contaminants are mine waste materials including tailings. From the materials, toxic elements including As, Cd, Cu, Pb and Zn can be dispersed into downstream through wind and water. Thus, soils around the mines contain elevated levels of those elements, which are over the guide values for environmental regulation of soils in Korea. Arsenic is one of the most important elements contaminated by mining activities, to a less extent, Cd, Cu, Pb and Zn. In spite of remediation works for some metal mines by the government, there are still lots of abandoned mines which are necessary for reclamation of mining sites. This study also includes that metal concentrations in soils and tailings can be varied upon various decomposition methods including 0.1N HC1 and aqua regia and sequential extraction scheme, with differences in each element, too. This may be due to geochemical characteristics of the elements, such as solubility, mobility and chemical forms in the geochemical environment. Finally, it is suggested that a certain organization should be runned by Korean government for management of abandoned mines.
Keywords
Environmental assessment; Heavy metals; Metalliferous mines; Chemical speciations;
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