title: Leachability of arsenic and heavy metals from mine tailings of abandoned metal mines.
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].
authors.affiliation: Korea Institute of Geoscience and Mineral Resources, Gwahang-no, Yuseong-gu, Daejeon, Korea. limmh@paran.com
authors.forename: Mihee
authors.initials: M
authors.lastname: Lim
authors.forename: Gi-Chun
authors.initials: GC
authors.lastname: Han
authors.forename: Ji-Whan
authors.initials: JW
authors.lastname: Ahn
authors.forename: Kwang-Suk
authors.initials: KS
authors.lastname: You
authors.forename: Hyung-Seok
authors.initials: HS
authors.lastname: Kim
mesh_terms: D001151:Arsenic / Q000633:toxicity*; D004784:Environmental Monitoring; D004785:Environmental Pollutants; D006801:Humans; D007220:Industrial Waste / Q000009:adverse effects*; D007723:Korea; D019216:Metals, Heavy / Q000633:toxicity; D008906:Mining; D012989:Soil Pollutants / Q000737:chemistry / Q000633:toxicity*; D014877:Water Pollution, Chemical; D018508:Water Purification
chemical_list: D004785:Environmental Pollutants; D007220:Industrial Waste; D019216:Metals, Heavy; D012989:Soil Pollutants; D001151:Arsenic