M
Miriam B. de Castro
Researcher at Federal University of Rio de Janeiro
Publications - 6
Citations - 508
Miriam B. de Castro is an academic researcher from Federal University of Rio de Janeiro. The author has contributed to research in topics: Mercury (element) & Predatory fish. The author has an hindex of 6, co-authored 6 publications receiving 497 citations.
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Journal ArticleDOI
Mercury and methylmercury in fish and human hair from the Tapajós river basin, Brazil
Olaf Malm,Fernando J.P. Branches,Hirokatsu Akagi,Miriam B. de Castro,Wolfgang C. Pfeiffer,Masazumi Harada,Wanderley Rodrigues Bastos,Hiroo Kato +7 more
TL;DR: Fish and hair samples as the best indicators of human methylmercury contamination were investigated in the main cities and villages along the Tapajós river basin and critical fish, areas, and more exposed human groups are identified.
Journal ArticleDOI
An assessment of Hg pollution in different goldmining areas, Amazon Brazil
Olaf Malm,Miriam B. de Castro,Wanderley Rodrigues Bastos,Fernando J.P. Branches,Jean Remy Davée Guimarães,Catia Eliza Zuffo,Wolfgang C. Pfeiffer +6 more
TL;DR: In this paper, total mercury concentrations in the more representative environmental (air, soil, bottom sediments, fishes and plants) and human (hair and urine) indicators, collected in the last 7 years in different goldmining areas (garimpos) are presented and discussed.
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Follow-up of mercury levels in fish, human hair and urine in the Madeira and Tapajós basins, Amazon, Brazil
Olaf Malm,Jean Remy Davée Guimarães,Miriam B. de Castro,Wanderley Rodrigues Bastos,J. P. Viana,Fernando J.P. Branches,Ene Glória da Silveira,Wolfgang C. Pfeiffer +7 more
TL;DR: In this paper, a study on critical compartments showed some areas with high Hg levels in fish as well as in human hair samples, and data from some areas of the Tapajos suggest a decrease with time.
Journal ArticleDOI
Transport pathways of Th, U, Ra and La from soil to cattle tissues
Paul Linsalata,Robert Morse,Helen Ford,Merril Eisenbud,Eduardo Penna Franca,Miriam B. de Castro,Nazyo Lobao,Ivanor Sachett,Marcia Carlos +8 more
TL;DR: In this article, a field study was conducted in an area of background radioactivity (Orange County, New York) to assess tissue concentrations, soil-to-tissue concentration ratios (CR) and the comparative bioavailability of isotopic Th, U, Ra and light rare earth elements (REE) (i.e., La, Ce, Nd and Sm) in adult steers.
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Th, U, Ra and rare earth element distribution in farm animal tissues from an elevated natural radiation background environment
Paul Linsalata,Robert Morse,Helen Ford,Merril Eisenbud,Eduardo Penna Franca,Miriam B. de Castro,Lobao Nazyo,Ivanor Sachett,Marcia Carlos +8 more
TL;DR: In this paper, a field study was conducted in an area of elevated natural background radioactivity (the Pocos de Caldas plateau, Brazil) to assess tissue concentrations and the comparative bioavailability of isotopic Th (IV), U (IV, VI), Ra (II) and light rare earth elements (REE), i.e. La (III) and Ce (III, IV) in adult steers, pigs and chickens.