Trace metals enrichment and potential ecological risk in sediments of the Sepetiba Bay (Rio de Janeiro, SE Brazil).
Coastal area
Enrichment factors
Potential ecological risk index
Sediments pollution metals
Journal
Marine pollution bulletin
ISSN: 1879-3363
Titre abrégé: Mar Pollut Bull
Pays: England
ID NLM: 0260231
Informations de publication
Date de publication:
Apr 2022
Apr 2022
Historique:
received:
11
07
2021
revised:
17
02
2022
accepted:
18
02
2022
pubmed:
13
3
2022
medline:
5
4
2022
entrez:
12
3
2022
Statut:
ppublish
Résumé
The Sepetiba Bay (SB; SE Brazil) has been severely affected by growing of urbanization and industrial activity. This work aims to analyze the evolution of contamination by metals of sediments in SB. The results show a marked increasing trend in the concentrations of potentially toxic elements (PTEs), which is consistent with the rapid populational and industrial growth, mostly since 1970 CE. The remobilization and redistribution of sediments by currents have contributed to the dispersion of metals from the main source of pollutants to relatively distant regions. "Moderately to strongly polluted" sediments are also recorded in some sites in deeper sedimentary layers (namely in preindustrial periods), probably due to lithologic sources of the sediments. The concentrations of PTEs in SB are relatively high when compared with those found globally and in other Brazilian water bodies. Samples of high-resolution sediment cores confirmed that potential ecological risk to the coastal system is influenced not only through human actions but also by natural causes.
Identifiants
pubmed: 35278908
pii: S0025-326X(22)00167-9
doi: 10.1016/j.marpolbul.2022.113485
pii:
doi:
Substances chimiques
Metals, Heavy
0
Water Pollutants, Chemical
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
113485Informations de copyright
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