Estudo dos teores de Pb, Cd, Sn, Co, V, Hg, Mo e As em sedimentos e fungos liquenizados, da ilha Rei George, península Fildes-Antártica, utilizando a técnica de ICP-MS

• Ano de defesa: 2015
• Autor(a) principal: Dalfior, Bruna Miurim
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal do Espírito Santo; BR; Mestrado em Química; Centro de Ciências Exatas; UFES; Programa de Pós-Graduação em Química
• Palavras-chave em Português: Sedimento; Antártica; Elementos Traço; ICP-MS; Fungos; Líquens; Química; 54
• Link de acesso: http://repositorio.ufes.br/handle/10/4747

The Antarctic continent is one of the few places that has not been explored at all, but studies show that this place is suffering interference by human activities. Therefore, monitoring of this region becomes very important. After optimization and verification methodology of the bioavailable concentrations in sediment samples collected throughout the Fildes Peninsula, King George Island, Antarctica, were determined by ICP-MS. The ranges found in mg kg-1 were 525.17 to 2314.11 (Pb), from 54.83 to 193.77 (Cd), from 54.83 to 193.77 (Sn), from 2095.04 to 11094.1 (Co) <2,4 -54,61 (Hg) <5.3 -38,66 (Mo) and 120.31 -1297.06 (As). When comparing these values with those described in the literature it appears that are below or within the range already reported. The presence of these elements in the samples can be attributed to different factors, such as the natural composition of sediment contamination by scientific stations, the existence of a local landing floor, besides the local and global transport of chemical elements caused by physical phenomena, which would result in the deposition of the same in different matrices.