Spatial distribution and enrichment assessment of heavy metals in surface sediments from Baixada Santista, Southeastern Brazil

Autor(es)

Kim, Bianca Sung Mi ^[1] ; Salaroli, Alexandre Barbosa ^[1] ; Ferreira, Paulo Alves de Lima ^[1] ; Sartoretto, Julie Rosemberg ^[1] ; de Mahiques, Michel Michaelovich ^[1] ; Lopes Figueira, Rubens Cesar ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Inst Oceanog, Pca Oceanog, 191 Butanta, BR-05508120 Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Marine Pollution Bulletin; v. 103, n. 1-2, p. 333-338, FEB 15 2016.
• Citações Web of Science: 23

Resumo

The Baixada Santista, besides being an important estuarine system, is responsible for most of the international trade and economic development in the region because of the Santos Port and the Cubatao Industrial Complex. The aim of this study is to assess heavy metal contamination of the Santos Sao Vicente Estuary using enrichment factors (EFs) and sediment quality guidelines (SQGs). Thus, superficial sediment samples were subjected to acid digestion and analyzed (Al, As, Cd, Cr, Cu, Fe, Mn, Ni, Pb, Sc, V, and Zn) by inductively coupled plasma optical emission spectrometry (ICP-OES). The results indicated an absence of contamination, with the EFs indicating moderate enrichment. As and Pb presented higher enrichment probably due to the natural processes of weathering and sedimentation, and the influence of human activity. This conjoint analysis showed that potentially polluting activities are of concern as the highest values converge near the Cubatao Industrial Complex, which correspond to intense urbanization and industrial activity. (C) 2016 Elsevier Ltd. All rights reserved. (AU)

• Processo FAPESP: 09/01211-0 - Histórico da atividade antrópica no Canal da Bertioga-SP: níveis de metais, semimetais e sedimentação recente em colunas sedimentares
• Beneficiário: Rubens Cesar Lopes Figueira
• Linha de fomento: Auxílio à Pesquisa - Regular
• Processo FAPESP: 11/50581-4 - Suscetibilidade e resistência de sistemas estuarinos urbanos a mudanças globais: balanço hidro-sedimentar, elevação do nível do mar, resposta a eventos extremos
• Beneficiário: Rubens Cesar Lopes Figueira
• Linha de fomento: Auxílio à Pesquisa - Regular