NDLI: A methodology for ranking potential pollution caused by abandoned mining wastes: application to sulfide mine tailings in Mazarrón (Southeast Spain)

Content Provider	Springer Nature Link
Author	Arranz González, J. C. Rodríguez Gómez, V. Campo, E. Alberruche Vadillo Fernández, L. Fernández Naranjo, F. J. Reyes Andrés, J. Rodríguez Pacheco, R.
Copyright Year	2016
Abstract	Mining wastes often contain high concentrations of toxic elements, whose mobility and dispersion may pose an environmental hazard for soils, water, ecosystems and people. This article describes the partial application of a methodology designed to evaluate the pollution potential of abandoned mining wastes, using two indices for potential pollution evaluation: an index of contamination (IC) and a hazard average quotient (CPP). Composite samples, consisting of at least 30 subsamples, were taken at three sulfidic tailings impoundments in the mining area of Mazarrón (SE Spain). Mineralogical, physical, and chemical characteristics were analyzed: color, particle size, powder XRD analysis, pH, total content of toxic elements, and concentrations in leachates by the standard procedure EN-12457-2. Tailings were extremely acid (pH 2.30–2.52). Some ranges of total content (in mg/kg) were: As (381–565), Pb (2602–4487), Sb (139–170), and Zn (3254–5652). The concentration measured in the EN-12457 leachates (µg/L) was as high as 367,000 for Zn, 2030 for Cu, and 974 for Cd. The IC and CPP values were among the most high of the tailings inventoried in Spain. The combination of the indices provided a good estimation of the potential toxicity of these wastes, and it can be useful to rank abandoned mining waste facilities.
Starting Page	1
Ending Page	10
Page Count	10
File Format	PDF
ISSN	18666280
Journal	Environmental Earth Sciences
Volume Number	75
Issue Number	8
e-ISSN	18666299
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2016-04-11
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Abandoned mine tailings Index of contamination Hazard average quotient Potential pollution South East Spain Geology Hydrology/Water Resources Geochemistry Environmental Science and Engineering Terrestrial Pollution Biogeosciences
Content Type	Text
Resource Type	Article
Subject	Global and Planetary Change Earth-Surface Processes Soil Science Environmental Chemistry Pollution Geology Water Science and Technology

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