Toxic elements in sediment from two water bodies near Brazilian Multipurpose Reactor ??? RMB installation area

• Autor(a) principal: SILVA, TATIANE B.S.C. da
• Data de Publicação: 2018
• Outros Autores: STELLATO, THAMIRIS B., MONTEIRO, LUCILENA R., MARQUES, JOYCE R., FAUSTINO, MAINARA G., SANTOS, CAMILA F.R.T.T., OLIVEIRA, CINTIA C. de, MIRANDA, GABRIELLE S., PIRES, MARIA A.F., COTRIM, MARYCEL E.B., INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE
• Tipo de documento: Artigo de conferência
• Título da fonte: Repositório Institucional do IPEN
• Texto Completo: http://repositorio.ipen.br/handle/123456789/28311
• topic: absorption spectroscopy; aquatic ecosystems; concentration ratio; contamination; ecological concentration; elements; environmental impacts; reactors; rivers; sediments; toxic materials; toxicity

Aquatic ecosystems are directly affected by contaminants, such as, toxic elements that do not remain in sediment in a insoluble form. Anthropogenic and natural actions influence sediment dynamics that could lead to a potential contaminant accumulation. Therefore, to evaluate possible environmental impacts is,in many cases, mandatory. Environmental impact assessment studies are a licensing toolthat seeks to control degradation activities, taking into account the legal and regulatory provisions and technical standards applicable to the case. The present study aims to evaluate the sediment quality in the area of influence of the Brazilian Multipurpose Nuclear Reactor (RMB) to be installed in the contiguous area of the Experimental Center of Aramar of the Technological Center of the Navy in S??o Paulo (CTMSP), located in the city of Iper?? - SP. The potentially toxic elements As, Cd and Hg were analyzed by Graphite Furnace Atomic Absorption Spectrometry (GFAAS) and Cr, Cu, Ni and Zn by Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES). Results were compared with Canadian Council of Ministers of the Environment (CCME) guideline values (TEL and PEL) and the maximum permitted values of Resolution 454/12. These toxic elements (As, Cd, Hg, Cr, Cu, Ni and Zn) were found below maximum allowed concentrations from national and international legislation. This study provides support for RMB post-completion evaluations, in order to prevent these elements to exceed tolerated levels, ensuring ecological, social and economic values.