Journal
JOURNAL OF ENVIRONMENTAL MANAGEMENT
Volume 206, Issue -, Pages 192-201Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jenvman.2017.10.034
Keywords
Mining ponds; Urban soil; Road dust; Redundancy analysis; Multivariate analysis
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Funding
- Fundacion Seneca of Comunidad Autemoma de Murcia-Spain [15380/PI/10]
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The vicinity of abandoned mining ponds to populated areas may suppose a high environmental and health risk being necessary evaluate unreclaimed ponds as source of metal(loid)s. In order to evaluate the behaviour of metals and arsenic from tailing ponds and their effects in urban areas, 10 mine wastes samples, 10 urban soil and 10 urban road dust samples were collected from two mining districts (La Union and Mazarron, SE Spain). Physicochemical properties and total, available and water-soluble concentration of metals (Cd, Co, Cr, Cu, Fe, Ni, Mn, Pb, Zn) and As were analyzed. Results suggest enrichment in Fe, Mn, Pb and Zn of urban soil and road dust in both studied towns. Multivariable analysis indicated that Cd, Mn, Pb and Zn in La Union urban soil, and As, Cd, Cu, Pb and Zn in soil and Fe in road dust of Mazarron come from mining districts. In addition, redundancy analysis showed that mobility of metal(loid)s related to mining sources were more influenced by their total concentration, while metals with a lithogeny origin were more affected by physicochemical properties. (C) 2017 Elsevier Ltd. All rights reserved.
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