El-Abed is one of the largest historical and abandoned mining operations for Pb–Zn deposits in northwestern Algeria, leaving large amounts of mining wastes accumulating under the influence of wind erosion. This study aims to verify the concentrations and sources of heavy metals for fifty-six (56) surface samples of environmental media (soil, sediments and mining residues).Chemical analyzes were performed using an optical emission spectrophotometer. A set of environmental quality indicators and multivariate statistical methods with geographic information system was obtained. In this study the mean values of the concentrations of trace metals are: (As = 30,82), (Pb = 1219,27), (Zn = 2855,94), (Cu = 5,3),mg/Kg, and the order as following : Zn > Pb > As > Cu. Based on these results, all trace metals except Copper (Cu) bypassed the the Geochemical background value in the Earth's crust. The results of the multivariate census indicated that there is a strong relationship for pollution indicators for trace elements lead (Pb), zinc (Zn) and arsenic (As). This factors indicate that they are from human sources, and a weak relationship for pollution indicators for trace elements copper (Cu), which is a natural source. Using Geographic Information System and based on spatial distribution maps, many hotspots have been identified. All sampling sites indicate general pollution, poor site quality and environmental hazards.
HAL is a multidisciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés. Stability of the association fayalite + calcite within metamorphosed banded iron formations: the case of the magnetite ores of Edough massif (N-E Algeria). Stabilité de l'association fayalite + calcite dans les formations ferrifères métamorphisées : l'exemple des minéralisations en magnétite du massif de l'Edough (N-E algérien).
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.