A multivariate approach and sediment quality index evaluation applied to Baixada Santista, Southeastern Brazil

Autor(es)

Kim, Bianca Sung Mi ^[1] ; Friedmann Angeli, Jose Lourenco ^[1] ; Lima Ferreira, Paulo Alves ^[1] ; de Mahiques, Michel Michaelovitch ^[1] ; Lopes Figueira, Rubens Cesar ^[1]

Afiliação do(s) autor(es)

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

• Tipo de documento: Artigo Científico
• Fonte: Marine Pollution Bulletin; v. 143, p. 72-80, JUN 2019.
• Citações Web of Science: 0

Resumo

Current studies use indices and chemometric approaches to assess the health quality of estuarine systems to support estuarine management. This study aims to use a multivariate approach and a set of indices to evaluate sediment health quality. Levels of Al, As, Cd, Cr, Cu, Fe, Ni, Pb, Sc, V, and Zn were quantified by ICP-OES, and nine indices were applied and evaluated individually. Most of the indices presented high values of Cu, Pb, and Zn, and the aggregative indices differed from each other in magnitude; however, the spatial distribution demonstrated the same trends. From PCA results, it was possible to differentiate lithogenic from the anthropogenic contribution, especially by Cu, Pb, and Zn. Thus, the integration of geochemical approaches and chemometric tools supported the interpretation of elemental contribution in terms of sources and pathway of heavy metals, which was similar to the results of other studies conducted in the area. (AU)

• Processo FAPESP: 17/08987-0 - Mudbelts do sul e sudeste do Brasil: um arquivo geoquímico para investigação de impactos antropogênicos
• Beneficiário: Bianca Sung Mi Kim
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• 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
• Modalidade de apoio: 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
• Modalidade de apoio: Auxílio à Pesquisa - Regular