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• W2915945352 abstract "In this paper, heavy metal contamination in surface sediments along the Mediterranean coast of Morocco was investigated. Determining pollution degree as well as heavy metal origins were the main objectives of this investigation. For this reason, concentrations of nine heavy metals (Cd, Cu, Cr, Ni, Pb, Zn, Hg, Fe, and Mn) were analyzed at ten stations sampled during three different periods. The obtained concentrations showed significant variation between sampling periods, which was controlled by several environmental and chemical processes. According to contamination indices results using pollution load index (PLI), modified contamination degree (mCd), geoaccumulation index (Igeo), enrichment factor (EF), and potential ecological risk index (RI), sampling stations were classified between uncontaminated and strongly contaminated without detecting any intense heavy metal pollution in surface sediment. Likewise, the EF values were comprised between no enrichment and moderate to severe enrichment. According to sediment quality guidelines, the calculated M-ERM-Q indicated that heavy metal mixtures have between 9 and 49% probability for being toxic. This result revealed lowest to medium-low potential of adverse effects to biota populations. Regarding heavy metal origins, multivariate statistical investigation showed that Cd, Cu, Hg, Pb, and Zn are derived mainly from anthropogenic activities, while Fe, Mn, Cr, and Ni were derived from natural sources. Despite Cd is considered as a typical anthropogenic metal, the very low concentrations obtained in this study support the involvement of natural factor in the enrichment with this metal. Therefore, the surface sediments contamination along the Mediterranean coasts of Morocco is particularly caused by a combination of anthropogenic and natural factors. As a result, the study area can be considered as not significantly enriched by human activities." @default.
• W2915945352 created "2019-03-02" @default.
• W2915945352 creator A5002033409 @default.
• W2915945352 creator A5047392655 @default.
• W2915945352 creator A5072530523 @default.
• W2915945352 date "2019-02-27" @default.
• W2915945352 modified "2023-10-04" @default.
• W2915945352 title "Assessment of heavy metal contamination in surface sediments along the Mediterranean coast of Morocco" @default.
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• W2915945352 doi "https://doi.org/10.1007/s10661-019-7332-4" @default.
• W2915945352 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/30815723" @default.
• W2915945352 hasPublicationYear "2019" @default.
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