

Author: Lim Mihee Han Gi-Chun Ahn Ji-Whan You Kwang-Suk Kim Hyung-Seok
Publisher: MDPI
E-ISSN: 1660-4601|6|11|2865-2879
ISSN: 1660-4601
Source: International Journal of Environmental Research and Public Health, Vol.6, Iss.11, 2009-11, pp. : 2865-2879
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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].
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