ARTHUR ATHAYDE MENEGHINI
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Artigo IPEN-doc 26157 Inorganic chemical elements determined in mineral water springs from the water circuit of Minas Gerais, Brazil by X-ray fluorescence spectrometry2019 - MENEGHINI, ARTHUR A.; WAKASUGI, DENISE S.M.; SANTOS, LAISSA A.B. dos; DAMATTO, SANDRA R.; SALVADOR, VERA L.R.Water Circuit of Minas Gerais (Circuito das Águas de Minas Gerais) is known by its mineral water parks located in the cities of Cambuquira, Caxambu, Conceição do Rio Verde, Lambari and São Lourenço. The mineral water of these parks is consumed regularly by the local population and tourists that are motivated by the medicinal use of the mineral water. One of the characteristics that defines a mineral water is its chemical composition, hence a water is considered mineral due to the chemical elements present in its composition. The objective of this work was to determine the inorganic chemical characterization of the mineral waters from the Water Parks of Cambuquira, Caxambu, Conceição do Rio Verde, Lambari and Marimbeiro analyzing the elements Ag, As, Ba, Ca, Cd, Co, Cr, Cu, Fe, K. Mn, Ni, Pb, Se, Ti, V and Zn by energy dispersive X-ray fluorescence spectrometry – EDXRF. Each water park presented different chemical elements with different concentrations, in spite of the parks are located near each other. The elements that presented the highest concentrations in all the samples analyzed were the major elements Ca, Fe, K and Mn. Among the four water parks studied, the mineral waters from Water Park of Caxambu presented the highest concentrations for all the elements determined. This study is part of a research project developed at CMR that studied the natural radionuclides 226Ra, 228Ra, 210Pb and 210Po and the inorganic chemical elements of the mineral waters of the Water Circuit of Minas Gerais.Artigo IPEN-doc 24438 Determinação da concentração de 226Ra, 228Ra e 210Pb e os efeitos da sazonalidade em águas mineirais da cidade de Caxambu, MG2017 - MENEGHINI, ARTHUR A.; DAMATTO, SANDRA R.; OLIVEIRA, JOSELENE; CARMO, AMANDA P.Com o crescente aumento no consumo das águas minerais, a caracterização de sua composição e a regulamentação dessas águas são essenciais, por ser a água uma parte fundamental da dieta humana. Nessas águas, além dos elementos e compostos químicos estáveis que lhe conferem características físico-químicas, há também os radionuclídeos naturais que são responsáveis pela característica radioativa das mesmas. A utilização das águas minerais com objetivo medicamentoso é uma prática realizada no mundo todo; o Brasil abriga a maior estância hidromineral do mundo, o Parque das Águas de Caxambu, em Minas Gerais. O parque dispõe de 12 fontes de águas minerais, um balneário e também o único gêiser classificado no Brasil. O objetivo desse trabalho foi determinar a concentração de 226Ra, 228Ra e 210Pb nas águas minerais das fontes do Parque das Águas e verificar a influência da sazonalidade nos níveis de concentração desses radionuclídeos.Artigo IPEN-doc 24052 Natural radionuclides, 226Ra, 228Ra and 210Pb, determined in mineral water springs from Parque das Águas de Caxambu, and assessment of the committed effective doses2017 - MENEGHINI, ARTHUR A.; DAMATTO, SANDRA R.; OLIVEIRA, JOSELENE; PRILIP, AMANDAThe increase of mineral water consumption and its medicinal use results in the necessity of characterization of these waters sources, once that water is a vital part of human diet. In the mineral waters, besides stable elements, responsible of the chemical composition, the presence of natural radionuclides from the 238U, 232Th, 235U series and 40K gives the radiation property. The incorporation of these radionuclides through the ingestion and external treatment of mineral waters are a very important point, due the ionizing radiation of these radionuclides are harmful to the organism. The largest mineral water park of the world is situated in Brazil, in the city of Caxambu, called “Parque das Águas de Caxambu”. In this park are 12 fountains distributed in the park, also a tubular well of 60 meters of depth which regularly provide water spouts, geyser, and another spring located inside the Gloria Hotel. Therefore, the aim of this work was to evaluate the activity concentrations of the radionuclides 226Ra, 228Ra and 210Pb in the mineral waters springs collected at the “Parque das Águas de Caxambu” and in the Gloria Hotel, as well as to estimate the committed effective doses due to the consumption of these waters. In six campaigns, the radionuclides with the highest concentrations were 226Ra and 228Ra in the springs D. Ernestina, Beleza and Venâncio. These springs also presented the highest values of the committed effective dose.