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Int. J. Environ. Res. Public Health 2009, 6(11), 2865-2879; doi:10.3390/ijerph6112865

Leachability of Arsenic and Heavy Metals from Mine Tailings of Abandoned Metal Mines

Korea Institute of Geoscience and Mineral Resources (KIGAM), 92 Gwahang-no, Yuseong-gu, Daejeon 305-350, Korea
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Received: 31 August 2009 / Accepted: 14 November 2009 / Published: 17 November 2009
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Abstract

Mine tailings from an abandoned metal mine in Korea contained high concentrations of arsenic (As) and heavy metals [e.g., As: 67,336, Fe: 137,180, Cu: 764, Pb: 3,572, and Zn: 12,420 (mg/kg)]. US EPA method 6010 was an effective method for analyzing total arsenic and heavy metals concentrations. Arsenic in the mine tailings showed a high residual fraction of 89% by a sequential extraction. In Toxicity Characteristic Leaching Procedure (TCLP) and Korean Standard Leaching Test (KSLT), leaching concentrations of arsenic and heavy metals were very low [e.g., As (mg/L): 0.4 for TCLP and 0.2 for KSLT; cf. As criteria (mg/L): 5.0 for TCLP and 1.5 for KSLT].
Keywords: mine tailings; abandoned mines; arsenic (As); heavy metals; sequential extraction; EPA method 6010; Toxicity Characteristic Leaching Procedure (TCLP) mine tailings; abandoned mines; arsenic (As); heavy metals; sequential extraction; EPA method 6010; Toxicity Characteristic Leaching Procedure (TCLP)
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MDPI and ACS Style

Lim, M.; Han, G.-C.; Ahn, J.-W.; You, K.-S.; Kim, H.-S. Leachability of Arsenic and Heavy Metals from Mine Tailings of Abandoned Metal Mines. Int. J. Environ. Res. Public Health 2009, 6, 2865-2879.

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