Physicochemical quality of surface water: Background study prior of the Milky river sub-basin, Abitibi, Canada


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Mambenga, Patrick Vualu Ibula, Maqsoud, Abdelkabir, Plante, Benoît, Benzaazoua, Mostafa et Ducharme, Yyan (2017). Physicochemical quality of surface water: Background study prior of the Milky river sub-basin, Abitibi, Canada. WSEAS Transactions on Environment and Development , 13 . pp. 43-48. Repéré dans Depositum à

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In spite of its economic benefits, the mining industry can have many negative impacts on the environment, more specifically, on surface water quality. The evaluation of the impact of the mining activity must therefore be addressed adequately with a background study prior to mining operation areas. Thirteen active and past producing mines are located inside the sub-basin of the Milky. These mining sites may contribute to the water mineralization of the surface waters and sediments of the Milky river system. In the present study, nine metals including As, Cd, Cr, Cu, Fe, Mn, Ni, Pb, and Zn were measured at thirty (30) surface water locations during two years in the catchment area of the Milky river. The data collected served to calculate the Metal pollution index (MPI) and the Metal index (MI) to evaluate the surface water quality. The MI values suggest that all the samples are contaminated, while only some of the samples are considered contaminated according to the MPI values. However, it is impossible to discriminate the origin of this contamination between the natural enriched geochemical background of this sub-basin and the anthropic activities. This discrepancy between the two pollution evaluation methods demonstrate that their interpretation needs to be adapted to the context of mining districts that have both a high natural geochemical background and are affected by past and present mining activities.

Type de document: Article
Mots-clés libres: Surface water; Metals; Metal pollution index; Metal index
Divisions: Génie
Mines et eaux souterraines
Date de dépôt: 20 avr. 2020 19:36
Dernière modification: 28 mai 2020 18:04

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