Metal distribution in sediment cores from Sao Paulo State Coast, Brazil

Autor(es)

Silva, Paulo S. C. ^[1] ; Damatto, Sandra R. ^[1] ; Maldonado, Caio ^[2] ; Favaro, Deborah I. T. ^[2] ; Mazzilli, Barbara P. ^[1]

Afiliação do(s) autor(es)

^[1] IPEN, Lab Radiometria Ambiental, Ctr Metrol Radiacoes, BR-05508900 Sao Paulo - Brazil

^[2] IPEN, Lab Analise Ativacao Neutron, Ctr Reator Pesquisas, BR-05508000 Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Marine Pollution Bulletin; v. 62, n. 5, p. 1130-1139, MAY 2011.
• Citações Web of Science: 12

Resumo

Ten sediment core samples with lengths ranging from 35 to 100 cm were collected in the Baixada Santista region and analyzed to determine As, Br, Co, Cr, Cs, Fe, Rb, Sb, Ta, Th, U, Zn and rare earths (Sc, Ce, Eu, La, Lu, Nd, Sm, Tb and Yb) level concentrations using instrumental neutron activation analysis (INAA). The studied region is located in the southeastern coast of Sao Paulo State and is comprised of a densely urbanized area, the largest industrial complex of the country, with a predominance of petrochemical and fertilizer plants. It is also home to Brazil's most important and busiest port. The conclusions found that the As, La, Sm, Ne, Ce, Eu, Hf, Ta, Th, and U elements have a high background level in the region and that Fe and Zn were the main indicators of anthropogenic contribution in the sediments. (C) 2011 Elsevier Ltd. All rights reserved. (AU)

• Processo FAPESP: 06/05686-4 - Concentração de radionuclídeos, terras raras e metais traços em perfis de sedimentos do litoral do estado de São Paulo visando à determinação de seus níveis naturais e identificação de regiões impactadas
• Beneficiário: Barbara Paci Mazzilli
• Modalidade de apoio: Auxílio à Pesquisa - Regular