Natural and anthropogenic sterols inputs to surface sediments of Patos Lagoon, Brazil
Autor(a) principal: | |
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Data de Publicação: | 2007 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da FURG (RI FURG) |
Texto Completo: | http://repositorio.furg.br/handle/1/2171 |
Resumo: | The Patos Lagoon, the largest coastal lagoon in the world, has long been receiving considerable anthropogenic input resulting from urban, rural and industrial activities. Thus, sewage contamination possibly originating from the more than 2 million inhabitants living within its drainage basin is examined in this study. Sediment samples collected from various points along the Lagoon were extracted, purified and analysed by GC-MS. Ten different sterols and ketones, including coprostanol and epicoprostanol, were identified and quantified. The highest coprostanol concentration was found near Porto Alegre City (1,423 ng g-1 dry wt.), whilst most sediment levels ranged between < DOL and 91.78 ng g-1. The highest concentrations were found at those three sites located closest to domestic outfalls though levels tended to decrease with distance from the sources. The 5b/(5b+5a) isomeric ratios indicated sewage contaminated sediments near Porto Alegre City, while the epicoprostanol/coprostanol ratio showed values characteristic of untreated sewage input. |
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Martins, César de CastroFillmann, GilbertoMontone, Rosalinda Carmela2012-07-24T16:42:28Z2012-07-24T16:42:28Z2007MARTINS, César de Castro; FILLMANN,Gilberto; MONTONE, Rosalinda Carmela. Natural and anthropogenic sterols inputs to surface sediments of Patos Lagoon, Brazil. Journal of the Brazilian Chemical Society, v. 18, n. 1, p. 106-115, 2007. Disponível em: <http://www.scielo.br/scielo.php?pid=S0103-50532007000100012&script=sci_arttext>. Acesso em: 20 jul. 2012.0103-5053http://repositorio.furg.br/handle/1/217110.1590/S0103-50532007000100012The Patos Lagoon, the largest coastal lagoon in the world, has long been receiving considerable anthropogenic input resulting from urban, rural and industrial activities. Thus, sewage contamination possibly originating from the more than 2 million inhabitants living within its drainage basin is examined in this study. Sediment samples collected from various points along the Lagoon were extracted, purified and analysed by GC-MS. Ten different sterols and ketones, including coprostanol and epicoprostanol, were identified and quantified. The highest coprostanol concentration was found near Porto Alegre City (1,423 ng g-1 dry wt.), whilst most sediment levels ranged between < DOL and 91.78 ng g-1. The highest concentrations were found at those three sites located closest to domestic outfalls though levels tended to decrease with distance from the sources. The 5b/(5b+5a) isomeric ratios indicated sewage contaminated sediments near Porto Alegre City, while the epicoprostanol/coprostanol ratio showed values characteristic of untreated sewage input.A Lagoa dos Patos (RS), considerada a maior lagoa costeira do mundo, tem sido afetada por diversas atividades antrópicas. Um risco de contaminação por esgoto ocorre devido ao estabelecimento de mais de 2 milhões de habitantes ao longo da bacia de drenagem desta região. Amostras de sedimentos foram coletadas e analisadas por CG-EM. Dez diferentes esteróis, incluindo coprostanol e epicoprostanol (fecais), e cetonas foram identificados e quantificados. A maior concentração de coprostanol foi encontrada próximo à cidade de Porto Alegre (1.423 ng g-1). Nos demais pontos, a concentração variou desde o limite de detecção até 91,78 ng g-1. As maiores concentrações foram encontradas próximo à descarga de esgotos e os níveis diminuíram com o aumento da distância desde as fontes. As razões isoméricas 5b / (5b+5a) indicaram sedimentos contaminados próximo a Porto Alegre. A razão epicoprostanol/coprostanol mostrou valores característicos do aporte de esgoto sem tratamento ao longo da Lagoa dos Patos.engSterolsCoprostanolSedimentPatos LagoonNatural and anthropogenic sterols inputs to surface sediments of Patos Lagoon, Brazilinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da FURG (RI FURG)instname:Universidade Federal do Rio Grande (FURG)instacron:FURGLICENSElicense.txtlicense.txttext/plain; charset=utf-81678https://repositorio.furg.br/bitstream/1/2171/2/license.txtd3be63d3b3eee02729709361dac69efeMD52open accessORIGINALNatural and anthropogenic sterols inputs to surface sediments of Patos Lagoon, Brazil.pdfNatural and anthropogenic sterols inputs to surface sediments of Patos Lagoon, Brazil.pdfapplication/pdf417502https://repositorio.furg.br/bitstream/1/2171/1/Natural%20and%20anthropogenic%20sterols%20inputs%20to%20surface%20sediments%20of%20Patos%20Lagoon%2c%20Brazil.pdf309b637e671718ddf7e7c57e16a4d9baMD51open access1/21712012-07-24 13:42:28.881open accessoai:repositorio.furg.br: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ório InstitucionalPUBhttps://repositorio.furg.br/oai/request || http://200.19.254.174/oai/requestopendoar:2012-07-24T16:42:28Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG)false |
dc.title.pt_BR.fl_str_mv |
Natural and anthropogenic sterols inputs to surface sediments of Patos Lagoon, Brazil |
title |
Natural and anthropogenic sterols inputs to surface sediments of Patos Lagoon, Brazil |
spellingShingle |
Natural and anthropogenic sterols inputs to surface sediments of Patos Lagoon, Brazil Martins, César de Castro Sterols Coprostanol Sediment Patos Lagoon |
title_short |
Natural and anthropogenic sterols inputs to surface sediments of Patos Lagoon, Brazil |
title_full |
Natural and anthropogenic sterols inputs to surface sediments of Patos Lagoon, Brazil |
title_fullStr |
Natural and anthropogenic sterols inputs to surface sediments of Patos Lagoon, Brazil |
title_full_unstemmed |
Natural and anthropogenic sterols inputs to surface sediments of Patos Lagoon, Brazil |
title_sort |
Natural and anthropogenic sterols inputs to surface sediments of Patos Lagoon, Brazil |
author |
Martins, César de Castro |
author_facet |
Martins, César de Castro Fillmann, Gilberto Montone, Rosalinda Carmela |
author_role |
author |
author2 |
Fillmann, Gilberto Montone, Rosalinda Carmela |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Martins, César de Castro Fillmann, Gilberto Montone, Rosalinda Carmela |
dc.subject.por.fl_str_mv |
Sterols Coprostanol Sediment Patos Lagoon |
topic |
Sterols Coprostanol Sediment Patos Lagoon |
description |
The Patos Lagoon, the largest coastal lagoon in the world, has long been receiving considerable anthropogenic input resulting from urban, rural and industrial activities. Thus, sewage contamination possibly originating from the more than 2 million inhabitants living within its drainage basin is examined in this study. Sediment samples collected from various points along the Lagoon were extracted, purified and analysed by GC-MS. Ten different sterols and ketones, including coprostanol and epicoprostanol, were identified and quantified. The highest coprostanol concentration was found near Porto Alegre City (1,423 ng g-1 dry wt.), whilst most sediment levels ranged between < DOL and 91.78 ng g-1. The highest concentrations were found at those three sites located closest to domestic outfalls though levels tended to decrease with distance from the sources. The 5b/(5b+5a) isomeric ratios indicated sewage contaminated sediments near Porto Alegre City, while the epicoprostanol/coprostanol ratio showed values characteristic of untreated sewage input. |
publishDate |
2007 |
dc.date.issued.fl_str_mv |
2007 |
dc.date.accessioned.fl_str_mv |
2012-07-24T16:42:28Z |
dc.date.available.fl_str_mv |
2012-07-24T16:42:28Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
MARTINS, César de Castro; FILLMANN,Gilberto; MONTONE, Rosalinda Carmela. Natural and anthropogenic sterols inputs to surface sediments of Patos Lagoon, Brazil. Journal of the Brazilian Chemical Society, v. 18, n. 1, p. 106-115, 2007. Disponível em: <http://www.scielo.br/scielo.php?pid=S0103-50532007000100012&script=sci_arttext>. Acesso em: 20 jul. 2012. |
dc.identifier.uri.fl_str_mv |
http://repositorio.furg.br/handle/1/2171 |
dc.identifier.issn.none.fl_str_mv |
0103-5053 |
dc.identifier.doi.pt_BR.fl_str_mv |
10.1590/S0103-50532007000100012 |
identifier_str_mv |
MARTINS, César de Castro; FILLMANN,Gilberto; MONTONE, Rosalinda Carmela. Natural and anthropogenic sterols inputs to surface sediments of Patos Lagoon, Brazil. Journal of the Brazilian Chemical Society, v. 18, n. 1, p. 106-115, 2007. Disponível em: <http://www.scielo.br/scielo.php?pid=S0103-50532007000100012&script=sci_arttext>. Acesso em: 20 jul. 2012. 0103-5053 10.1590/S0103-50532007000100012 |
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