Distribuição do mercúrio em sedimentos de fundo no Estuário de Santos SP/Brasil

Abstract

Amostras de sedimentos de fundo foram coletadas e analisadas para o mercúrio no Estuário de Santos-SP. Os resultados analíticos foram revistos para contaminação antropogênica de alguns setores da área estuarina como resultado de resíduos petroquímico e metalúrgico derivados do distrito industrial de Cubatão, das atividades siderúrgicas do Estado de São Paulo (COSIPA), do porto de Santos e, finalmente, das descargas dos efluentes do emissário submarino dentro da baía de Santos. Os valores para o fator de contaminação médio (FC) obtidos para os sedimentos de fundo variam de 1 a 3, principalmente para os canais de Santos e São Vicente; entretanto, na baía de Santos, os valores de FC (abaixo de 1) indicam baixa contaminação, exceto na área de descarga do emissário submarino.<br>Bottom sediment samples were collected and analyzed for mercury in the Estuary of Santos-SP. The analytical results reveal anthropogenic contamination for some sectors of this estuarine area as a result of petrochemical and metallurgical residues derived from the Industrial District of Cubatão, from the activities of the State of São Paulo Siderurgy (COSIPA), from the Santos harbor and, finally, from effluents discharged by the submarine emissary into the Bay of Santos. The values for the factor of contamination (FC) found in the bottom sediments range from 1 to 3, mainly for the channels of Santos and São Vicente; however, in the Bay of Santos the FC values (below 1) indicate low contamination except in the discharge area of the submarine emissary

Metals, trace elements and ecotoxicity in sediments of the Cubatão River, Brazil

“…This study also corroborates the findings obtained by other authors on the mercury distribution and concentrations in sediments from the SES (Siqueira et al, 2005;Luiz-Silva et al, 2006;. The highest concentrations are associated with the vicinity of the industrial sector and end up contributing to contamination of Santos-São Vicente estuary through waters from the Cubatão River Basin.…”

Trace elements in an adjacent channel of an anthropized area: a case study of Baixada Santista, Southeastern Brazil

“…The concentrations found by other authors in regions adjacent to this study, as well as in the Santos and São Vicente Estuary (Oliveira et al, 2005;Siqueira et al, 2005;Cesar et al, 2007;Choueri et al, 2010), based on the weight-of-evidence approach, provides a structure and a process for conducting sediment/ dredging material assessment that leads to a decision. The main structure consists of \"step 1\" (examination of available dataare much higher than those found in the Bertioga Channel.…”

Influence of seasonality and pollution on the hematological parameters of the estuarine fish Centropomus parallelus

“…1). São Vicente Estuary (SVE) is a part of the Santos Estuarine System, which is considered highly impacted by anthropic interventions and pollution (BOLDRINI;PEREIRA, 1987;MEDEIROS;BÍCEGO, 2004;SIQUEIRA et al, 2005;BÍCEGO et al, 2006;CESAR et al, 2006;HORTELLANI, et al, 2008;MARTINS et al, 2008;KIRSCHBAUM et al, 2009, SERIANI, et al, 2010. The SVE receives mainly domestic pollution from diffuse sources, specially sewage, stormwater and urban drainage, but contamination from domestic and industrial landfills is also considerable (LAMPARELLI et al, 2001).…”