Secondary dispersión of heavy metals in stream sediments from Chillon, Rimac and Lurin rivers. Dpto. of Lima

• Autores: Rivera, Hugo, Chira, Jorge, Zambrano, Karla, Petersen, Paolo Petersen
• Formato: artículo
• Fecha de Publicación: 2007
• Institución: Universidad Nacional Mayor de San Marcos
• Repositorio: Revistas - Universidad Nacional Mayor de San Marcos
• Lenguaje: español
• OAI Identifier: oai:ojs.csi.unmsm:article/489
• Enlace del recurso: https://revistasinvestigacion.unmsm.edu.pe/index.php/iigeo/article/view/489
• Nivel de acceso: acceso abierto
• Materia: Metales pesados; sedimentos de quebradas; dispersión; abundancia; correlación; evolución; Heavy metals; stream sediments; dispersion; abundance; correlation; evolution

The geochemistry-statistical study involve fourteen heavy metals/metalloids As-Cd-Cr-Cu-Fe-Hg-Mo-Ni-Pb-Sb-Sn-V-W-Zn in stream sediments from Chillon, Rímac and Lurin rivers of Lima City. These are potentially toxic metals at health in a human populations and the biota had to be research on the solution and suspension fractions, but not the behaviour from the detritic material. Have found in the Rimac river high levels of abundance Zn, Pb, As, W, Sn, Fe, Sb, Mo, Cd; in Chillón River V, Cu, Ni, Hg and in Lurin river, only Cr. At compare with the levels established in te Table Holland , the Rimac River is contamined in As, Cu, Hg, Zn, y Sb, in Chillon river V, Cu, Ni, Hg and the Lurin river only As, Sb. According to the secondary dispersion of metales determined that lower and medium course of Chillon and Rimac rivers is concentrate lot of metals, but is not the same in Lurin river, because the metals have not an good dispersion. and concentrate in the upper course Otherwise, the evolution of the metal abundances with respect litology and geological ages, we have in the Chillon River, the Group Casma, in the Rimac river the formations Paleogene and the Lurin river the volcanics Quilmana-Paleogene-Neogene, whose sediments supply of the most of the heavy metals