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dc.contributor.author Medeiros, Patricia Matheus
dc.contributor.author Bícego, Márcia Caruso
dc.contributor.author Castelão, Renato Menezes
dc.contributor.author Rosso, Clarissa Del
dc.contributor.author Fillmann, Gilberto
dc.contributor.author Zamboni, Ademilson Josemar
dc.date.accessioned 2013-09-26T18:30:03Z
dc.date.available 2013-09-26T18:30:03Z
dc.date.issued 2005
dc.identifier.citation MEDEIROS, Patricia Matheus et al. Natural and anthropogenic hydrocarbon inputs to sediments of Patos Lagoon Estuary, Brazil. Environment International, Inglaterra, v. 31, n.1, p. 77-87, 2005. Disponível em: <http://www.ncbi.nlm.nih.gov/pubmed/15607781>. Acesso em: 22 jul. 2012. pt_BR
dc.identifier.uri http://repositorio.furg.br/handle/1/3916
dc.description.abstract The Patos Lagoon Estuary, southern Brazil, is an area of environmental interest not only because of tourism, but also because of the presence of the second major port of Brazil, with the relaBrazil ted industrial and shipping activities. Thus, potential hydrocarbon pollution was examined in this study. Sediment samples were collected at 10 sites in the estuary, extracted, and analyzed by GC-FID and GC-MS for composition and concentration of the following organic geochemical markers: normal and isoprenoid alkanes, petroleum biomarkers, linear alkylbenzenes (LABs), and polycyclic aromatic hydrocarbons (PAHs). The total concentrations varied from 1.1 to 129.6 microg g(-1) for aliphatic hydrocarbons, from 17.8 to 4510.6 ng g(-1) for petroleum biomarkers, from 3.2 to 1601.9 ng g(-1) for LABs, and from 37.7 to 11,779.9 ng g(-1) for PAHs. Natural hydrocarbons were mainly derived from planktonic inputs due to a usual development of blooms in the estuary. Terrestrial plant wax compounds prevailed at sites located far from Rio Grande City and subject to stronger currents. Anthropogenic hydrocarbons are related to combustion/pyrolysis processes of fossil fuel, release of unburned oil products and domestic/industrial waste outfalls. Anthropogenic hydrocarbon inputs were more apparent at sites associated with industrial discharges (petroleum distributor and refinery), shipping activities (dry docking), and sewage outfalls (sewage). The overall concentrations of anthropogenic hydrocarbons revealed moderate to high hydrocarbon pollution in the study area pt_BR
dc.language.iso eng pt_BR
dc.rights restrict access pt_BR
dc.subject Hydrocarbons pt_BR
dc.subject Sediment pt_BR
dc.subject Anthropogenic pt_BR
dc.subject Biogenic pt_BR
dc.subject Patos Lagoon Estuary pt_BR
dc.subject Brazil pt_BR
dc.title Natural and anthropogenic hydrocarbon inputs to sediments of Patos Lagoon Estuary, Brazil pt_BR
dc.type article pt_BR


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