Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Juan Estévez Álvarez"'
Autor:
Olegario Muñiz Ugarte, Juan Estévez Álvarez, José Araújo dos Santos Júnior, Maydel Rodríguez González, Iván Pupo González, Alfredo Montero Álvarez, Otavio Pereira Dos Santos Junior, Zahily Herrero Fernández, Mariana Brayner Cavalcanti Freire Bezerra
Publikováno v:
Food additivescontaminants. Part B, Surveillance. 14(1)
Mercury, lead, cadmium and arsenic are considered hazardous pollutants in the environment, which can result in a risk for human health. This study aimed to determine the contents of As, Cd, Cr, Cu, Hg, Ni, Pb and Zn by ICP-MS, CVAAS and ICP-AES in pa
Publikováno v:
Nucleus, Vol 0, Iss 39 (2006)
Investigations on the concentration level of heavy metals in the sediments of Cienfuegos bay (Cuba) have been carried out, to reconstruct their “depositional history” by using radionuclide geochronology, to highlight the major changes occurred in
Externí odkaz:
https://doaj.org/article/11fcd3fbd8ed44a48c03f61ce8b63545
Autor:
Romilton dos Santos Amaral, Jairo Dias Bezerra, José Araújo dos Santos Júnior, Juan Estévez Álvarez, José de Almeida Maciel Neto, Alberto Antônio da Silva, Rômulo Simões Cezar Menezes, Zahily Herrero Fernández, Josineide Marques do Nascimento Santos, Kennedy Francys Rodrigues Damascena
Publikováno v:
Ecotoxicology and Environmental Safety. 141:154-159
One of the main natural uranium deposits in Brazil is located in the municipality of Espinharas, in the State of Paraiba. This area may present high levels of natural radioactivity due to the presence of these radionuclides. Since this is a populated
Autor:
Román Padilla Álvarez, Maydel Rodríguez González, Dennys Leyva Bombuse, José Araújo dos Santos Júnior, Alfredo Montero Álvarez, Iván Pupo González, Guillermo Mesa Pérez, Juan Estévez Álvarez, Nelis Blanco Hernández, Marvic Ortueta Milan, Nancy Alberro Macias, Zahily Herrero Fernández, Débora Hernández Torres
Publikováno v:
X-Ray Spectrometry. 45:77-84
This research presents the contents of Ca, Fe, Zn, Br, Rb, Sr and Pb in lichen samples used as biomonitors of air pollution collected in Havana. Statistical comparisons were made among the results obtained in three campaigns during three years. Two X
Autor:
Juan Estévez Álvarez, Lázaro Lima Carzola, Oscar Díaz Rizo, Clístenes Williams Araújo do Nascimento, Iván Pupo González, Jorge L. Gómez Pascual, Alfredo Montero Álvarez, Roberto Ayllón Torres
Publikováno v:
Environmental Monitoring and Assessment. 189
Epiphytic lichens, collected from 119 sampling sites grown over “Roistonea Royal Palm” trees, were used to assess the spatial distribution pattern of lead (Pb) and identify possible pollution sources in Havana (Cuba). Lead concentrations in liche