SANDRA REGINA DAMATTO
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Artigo IPEN-doc 27396 Natural radionuclides 226Ra, 228Ra, 210Pb and 210Po and inorganic chemical elements determined in mineral waters from Águas de Contendas and Lambari, Brazil2020 - WAKASUGI, DENISE S.M.; DAMATTO, SANDRA R.; ULRICH, JOAO C.Natural radionuclides 226Ra, 228Ra, 210Pb and 210Po activity concentrations and the inorganic chemical composition were determined in radioactive mineral water springs from the Water Parks of Águas de Contendas and Lambari, located in the Water Circuit of the state of Minas Gerais, Brazil. Radionuclides were determined by gross alpha and beta measurements and alpha spectrometry, and the chemical elements by ICP-OES. Among the radionuclides analyzed, the highest activity concentrations obtained were for 226Ra and 228Ra and the chemical elements Ca, Fe and Na presented higher values of concentrations. Pearson’s correlation coefficient analysis was performed to verify the correlation between natural radionuclides and the chemical elements.Artigo IPEN-doc 21316 Trace metal and rare earth elements in a sediment profile from the Rio Grande Reservoir, São Paulo, Brazil: determination of anthropogenic contamination, dating, and sedimentation rates2016 - FRANKLIN, ROBSON L.; FAVARO, DEBORAH I.T.; DAMATTO, SANDRA R.Artigo IPEN-doc 20823 Geochemistry of the upper Parana river foodplain: study of the Garças Pond and Patos Pond2015 - REMOR, MARCELO B.; SAMPAIO, SILVIO C.; DAMATTO, SANDRA R.; CASTILHOS, ZULEICA C.; STEVAUX, JOSE C.; VILAS BOAS, MARCIO A.; REIS, RALPHO R. dosThe aim of this study was to investigate the temporal evolution of the supply of chemical elements to the Upper Parana´ River floodplain and identify trends in the geochemistry of its drainage basin. The primary factor that regulates the supply of chemical elements of the Upper Parana´ River floodplain is the flood pulse, which can be magnified by the El Nin˜o—Southern Oscillation. Garc¸as Pond is affected by agriculture, urbanization, discharge of industrial effluents and hydroelectric power production activities. Patos Pond is affected by sugarcane burning, gold mining, agriculture and urbanization.Artigo IPEN-doc 20047 Lichen specie Canoparmelia texana as bioindicator of environmental impact from the phosphate fertilizer industry of Sao Paulo, Brazil2014 - LEONARDO, L.; DAMATTO, S.R.; GIOS, B.R.; MAZZILLI, B.P.The Brazilian phosphate industry is the sixth worldwide producer of phosphate rock concentrate generating phosphoric acid, fertilizers, intermediates for fertilizers and other products. Two of the most important of these industries are both located in the city of Cubata˜o— Sa˜o Paulo, Brazil, and they are responsible for the production of P2O5, generating a residue known as phosphogypsum. The raw material, phosphate rock and products are commonly transported to the industrial complex by a railroad line and present in their composition natural radionuclides from the U and Th series and rare earth elements. Lichens have been used for monitoring atmospheric pollution and radiological contamination for a long time and have proven to be an important tool. This paper aims to highlight the use of the lichen specie Canoparmelia texana (family Parmeliacea) as a bioindicator of atmospheric pollution by the natural radionuclides from the U and Th series and RREs due to the operation of these industries and the storage of their residue in the open air. Samples of these lichen specie were collected in the vicinity of the industries and the railroad. The radionuclides 226Ra, 228Ra and 210Pb were measured by alpha and beta counting, after radiochemical separation, and 238U, 232Th as well as REEs were determined by instrumental neutron activation analysis. The results showed that the lichens present the same fingerprint as the phosphate rock and phosphogypsum, furthermore the cluster analysis of the results showed that the lichen samples collected near to the railroad line presented the highest values for all the elements studied.Artigo IPEN-doc 11892 Chemical characterization and recent sedimentation rates in sediment cores from Rio Grande reservoir, SP, Brazil2007 - FAVARO, D.I.T.; DAMATTO, S.R.; MOREIRA, E.G.; MAZZILLI, B.P.; CAMPAGNOLI, F.Artigo IPEN-doc 08256 Multielemental determination by instrumental neutron activation analysis and recent sedimentation rates using sup(210)Pb dating method at Laguna del Plata, Cordoba, Argentina2001 - LARIZZATTI, F.E.; FAVARO, D.I.T.; MOREIRA, S.R.D.; MAZZILLI, B.P.; PIOVANO, E.L.Artigo IPEN-doc 09580 Rare earth element patterns in lake sediments as studied by neutron activation analysis2003 - OLIVEIRA, S.M.B.; LARIZZATTI, F.E.; FAVARO, D.I.T.; MOREIRA, S.R.D.; MAZZILLI, B.P.; PIOVANO, E.L.Artigo IPEN-doc 11725 Chemical characterization and sup(210)Pb dating in wetland sediments form the Nhecolandia Pantanal Pond, Brazil2006 - FAVARO, D.I.T.; DAMATTO, S.R.; SILVA, P.S.C.; RIGA, A.A.; SAKAMOTO, A.Y.; MAZZILLI, B.P.Artigo IPEN-doc 14514 Radioactive and stable elements' concentration in medicinal plants from Brazil2009 - SUSSA, F.V.; SILVA, P.S.C.; DAMATTO, S.R.; FAVARO, D.I.T.; MAZZILLI, B.P.Artigo IPEN-doc 14516 Fast methodology for time counting optimization in gamma-ray spectrometry based on prest minimum detectable amounts2009 - NISTI, M.B.; SANTOS, A.J.G.; PECEQUILO, B.R.S.; MADUAR, M.F.; ALENCAR, M.M.; MOREIRA, S.R.D.