Title of article :
Integrated quality assessment of sediments from harbour areas in Santos-Sمo Vicente Estuarine System, Southern Brazil
Author/Authors :
Buruaem، نويسنده , , Lucas Moreira and de Castro، نويسنده , , حtalo Braga and Hortellani، نويسنده , , Marcos Antonio and Taniguchi، نويسنده , , Satie and Fillmann، نويسنده , , Gilberto and Sasaki، نويسنده , , Silvio Tarou and Varella Petti، نويسنده , , Mônica Angélica and Sarkis، نويسنده , , Jorge Eduardo de Souza and Bيcego، نويسنده , , Mلrcia Caruso and Maran، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2013
Pages :
11
From page :
179
To page :
189
Abstract :
Santos-Sمo Vicente Estuarine System is a highly populated coastal zone in Brazil and where it is located the major port of Latin America. Historically, port activities, industrial and domestic effluents discharges have constituted the main sources of contaminants to estuarine system. This study aimed to assess the recent status of sediment quality from 5 zones of Port of Santos by applying a lines-of-evidence approach through integrating results of: (1) acute toxicity of whole sediment and chronic toxicity of liquid phases; (2) grain size, organic matter, organic carbon, nitrogen, phosphorus, trace metals, polycyclic aromatic hydrocarbons, linear alkylbenzenes and butyltins; (3) benthic community descriptors. Results revealed a gradient of increasing contamination for metals and organic compounds, alongside with their geochemical carriers. Sediment liquid phases were more toxic compared to whole sediment. Low number of species and individuals indicated the impoverishment of benthic community. The use of site-specific sediment quality guidelines was more appropriate to predict sediment toxicity. The integration of results through Sediment Quality Triad approach and principal component analysis allowed observing the effects of natural stressors and dredging on sediment quality and benthic distribution. Even with recent governmental efforts to control, pollution is still relevant in Port of Santos and a threat to local ecosystems.
Keywords :
Dredged material , Integrated assessment , Sediment quality triad , Marine pollution , lines-of-evidence approach
Journal title :
Estuarine, Coastal and Shelf Science
Serial Year :
2013
Journal title :
Estuarine, Coastal and Shelf Science
Record number :
1945467
Link To Document :
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