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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Organic and inorganic contamination in sediments from Araca Bay, Sao Sebastido, Brazil

Texto completo
Autor(es):
Mi Kim, Bianca Sung [1] ; Bicego, Marcia Caruso [1] ; Taniguchi, Satie [1] ; Siegle, Eduardo [1] ; Oliveira, Renato [1] ; Alcantara-Carrio, Javier [1] ; Lopes Figueira, Rubens Cesar [1]
Número total de Autores: 7
Afiliação do(s) autor(es):
[1] Univ Sao Paulo IOUSP, Inst Oceanog, Pca Oceanog 191, BR-05508120 Butanta, SP - Brazil
Número total de Afiliações: 1
Tipo de documento: Artigo Científico
Fonte: OCEAN & COASTAL MANAGEMENT; v. 164, n. SI, p. 42-51, OCT 1 2018.
Citações Web of Science: 4
Resumo

The aim of this work is to verify the organic and inorganic contamination in Araca Bay, which contains one of the last remnants of mangrove forest on the northern coast of Sao Paulo State, Brazil, to improve the environmental management of this area, which is part of the Marine Protected Area of the Northern Coast of Sao Paulo State (APAMLN) and the Environmental Protected Area of the Alcatrazes Municipality (APAMA). Surface sediments were analyzed to provide information on the levels, spatial trends and sources of trace elements, aliphatic hydrocarbons (All), polycyclic aromatic hydrocarbons (PAH), and fecal steroids. Low levels of trace elements were observed, and the enrichment factors showed no evidence of contamination in the area. The highest concentrations of all organic contaminants were recorded in the samples collected in the external sublittoral stations, mainly in the Sao Sebastiao Channel, which had the finest grain sizes and higher OC contents. With the exception of the samples collected in the inner part of the bay, most of the samples presented unresolved complex mixtures (UCM) of AH, which are indicators of petroleum and its derivative inputs. PAH concentrations were higher in the external stations, but the levels were below the limits of the sediment quality guidelines (SQG) recommended in Brazilian federal legislation on dredged sediments. The major sources of these compounds were from pyrolytic sources. Sewage contamination was detected mainly in the inner part of the bay, especially near the northern stream and the sewage outfall. The contaminant distributions were related to the hydrodynamics of the intertidal flat, with the most central dynamic areas presenting lower contaminant levels. (AU)

Processo FAPESP: 11/50317-5 - Biodiversidade e funcionamento de um ecossistema costeiro subtropical: subsídios para gestão integrada
Beneficiário:Antonia Cecília Zacagnini Amaral
Linha de fomento: Auxílio à Pesquisa - Programa BIOTA - Temático