Trace metals enrichment and potential ecological risk in sediments of the Sepetiba Bay (Rio de Janeiro, SE Brazil)

被引：0

作者：

da Silva, Layla Cristine ^{[1
]}

Martins, Maria Virginia Alves ^{[1
,2
]}

Castelo, Wellen Fernanda Louzada ^{[1
]}

Saibro, Murilo Barros ^{[1
]}

Rangel, Dandara ^{[3
]}

Pereira, Egberto ^{[1
]}

Bergamaschi, Sergio ^{[1
]}

Sousa, Silvia Helena Mello e ^{[4
]}

Varela, Josefa ^{[3
]}

Laut, Lazaro ^{[5
]}

Frontalini, Fabrizio ^{[6
]}

Chaves, Hernani ^{[1
]}

Reis, António Tadeu ^{[3
]}

Aguilera, Orangel ^{[7
]}

Zaaboub, Noureddine ^{[8
]}

Cheriyan, Eldhose ^{[9
]}

Geraldes, Mauro César ^{[1
]}

机构：

[1] Universidade do Estado do Rio de Janeiro, UERJ, Faculdade de Geologia, Av. São Francisco Xavier, 24, sala 2020A, Maracanã, RJ, Rio de Janeiro,20550-013, Brazil

[2] Universidade de Aveiro, GeoBioTec, Departamento de Geociências, Campus de Santiago, Aveiro,3810-193, Portugal

[3] Universidade do Estado do Rio de Janeiro, UERJ, Faculdade de Oceanografia, Rua São Francisco Xavier, 524, 4° andar, Bloco E, sala 4018, RJ, Rio de Janeiro,CEP 20550-900, Brazil

[4] Instituto Oceanográfico, Universidade de São Paulo (IOUSP), Pça. Do Oceanográfico, 191, Butantã, São Paulo, Brazil

[5] Laboratório de Micropaleontologia – LabMicro, Universidade Federal do Estado do Rio de Janeiro (UNIRIO), Av. Pasteur, 436, Urca, Rio de Janeiro,CEP 22290-240, Brazil

[6] Department of Pure and Applied Sciences, Università degli Studi di Urbino Carlo Bo, Urbino,61029, Italy

[7] Universidade Federal Fluminense, Instituto de Biologia, Departamento de Biologia Marinha, Laboratorio de Paleoecologia e Mudanças Globais Campus de Gragoatá, Bloco M, Rio de Janeiro, Niterói,CEP: 24210-200, Brazil

[8] Institut National des Sciences et Technologies de la Mer, Department of Marine Science, Tunis, Tunisia

[9] Department of Chemical Oceanography, School of Marine Sciences, Cochin University of Science and Technology, Kerala, Cochin,682016, India

来源：

Marine Pollution Bulletin | 2022年 / 177卷

关键词：

Pollution - Trace elements - Sediments;

D O I：

暂无

中图分类号：

TU4 [土力学、地基基础工程];

学科分类号：

081401 ;

摘要：

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. © 2022 Elsevier Ltd

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