Enrichment and contamination level of trace metals in the Mediterranean marine sediments of Spain

The Science of the Total Environment
Remedios Martínez-GuijarroDaniel Aguado

Abstract

Coastal ecosystems are heavily polluted by human activities. These pollutants reach the aquatic environment and accumulate in the sediment. Among the chemical pollutants, metals represent a notable hazard since they are not biodegradable and have the capability to bioaccumulate, resulting in toxic effects in both the short and long term. In this study, the content of metals and As in marine sediments of the Spanish Mediterranean coast was determined. A total of four annual sampling campaigns were carried out along the Valencian Community coastline, where the presence of eight trace elements (Cr, Cd, Ni, Pb, Cu, Hg, Zn and As) was determined. In this area, the presence of the contaminants is due to both natural and anthropogenic sources. The results obtained allowed, first, to establish nearness Reference Values of the area under study, second, to use several pollution indices (Contamination Factor, Enrichment Factor, Geoaccumulation Factor, Nemerow Pollution Index, and Modified Pollution Index) to determine contamination levels in the area, and finally to select the best index to apply in this coastal zone. The best indices to use in this region are EF and MPI since both take into consideration the natural contributions of the ...Continue Reading

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Citations

Jul 11, 2020·Scientific Reports·Beatriz García-BéjarAna Briones
Jun 28, 2021·Environmental Science and Pollution Research International·Rafet Çağrı ÖztürkErhan Mutlu
Dec 6, 2021·The Science of the Total Environment·Zohreh AlvyarBudiman Minasny

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