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October 2009 - present
Publications
Publications (47)
El agua subterránea es la principal fuente de consumo en muchos centros urbanos y áreas rurales de Bolivia, tal es el caso del Municipio de San Pedro ubicado en el departamento de Santa Cruz. El presente estudio se realizó con la Received 04 12 2021 Accepted 04 26 2020 Published 04 30 2021 Vol. 38, No.1, pp. 46-55, Ene./Abr.2021 Revista Boliviana d...
La presencia de elevadas concentraciones de arsénico encontradas en el agua de consumo de dos sitios geográficamente distantes en Bolivia, ha requerido el diseño, la construcción y la implementación de un sistema de remoción de arsénico para así obtener agua más segura para su consumo. Uno de los sitios se encuentra en una unidad educativa de la zo...
Esta publicación es el Resumen Ejecutivo del análisis realizado por investigadores de la UMSA sobre el Estudio de Identificacion del proyecto de generación de energía de las represas de Chepete y Bala, en la Amazonía de Bolivia. El trabajo se realizó a solicitud de la Mancomunidad indígena de los rios Beni, Tuichi y Quiquibey.
During the emergency caused by the shortage of drinking water for the city of La Paz in November 2016, the local government has used spring water to distribute drinking water to affected areas. The present study has evaluated the physicochemical and bacteriological quality of these water sources and has found that all samples of the studied springs...
Proporcionar recomendaciones sobre la mejor opción para la prevención y manejo de lesiones premalignas y reducir la incidencia y mortalidad por cáncer cervicouterino.
Incluir recomendaciones en situaciones especiales como limitaciones de recursos humanos y materiales, pacientes embarazadas, pacientes con VIH e indicaciones para la vacunación.
Methylation and demethylation represent major transformation pathways regulating the net production of methylmercury (MMHg). Very few studies have documented Hg reactivity and transformation in extreme high-altitude lake ecosystems. Mercury (Hg) species concentrations (IHg, MMHg, Hg°, and DMHg) and in situ Hg methylation (M) and MMHg demethylation...
Groundwater from shallow aquifers and surface water from rivers of the southern part of Poopó Lake basin within the Bolivian Altiplano have significant quality problems such as, high salinity and high concentrations of arsenic (As). The extent of As contamination is observed in the studied groundwater over large parts of the study area. Surface-wat...
The Vinto Sb–Sn smelter (Oruro, Bolivia) has been linked to arsenic and heavy metal pollution in air, soils, residual waters of the smelter, and hair and urine of workers, but crop concentrations had not been assessed previously. In this article, alfalfa, onions, and carrots, separated into roots and shoots, were analyzed for As and Pb, together wi...
Mercury is transported globally in the atmosphere mostly in gaseous elemental form (GEM, [Formula: see text]), but still few worldwide studies taking into account different and contrasted environmental settings are available in a single publication. This work presents and discusses data from Argentina, Bolivia, Bosnia and Herzegovina, Brazil, Chile...
Water management in semiarid and arid catchments such as the Poopó Lake Basin requires improved understanding of the complex behavior of the various contaminants, which affect the drinking water quality and considered as crucial for sustainable development of the region. Mechanisms of arsenic (As) release in the surface and groundwater were studied...
Potosí (South West Bolivia) is a well known historical mining site in the world, with mining activity centered at the so-called Cerro Rico. It is an impressive mount formed by rhyolitic rocks affected by intensive hydrothermal alteration, and hosting a complex vein deposit including mainly Ag and Sn minerals. From the start of the mining activity,...
The Puyango River Basin covers approximately an area of 4400 km2, it is located in Southern of Ecuador, with Calera and Amarillo rivers as tributaries. In this region, one of the main activities is small scale gold and silver mining. Currently there are 110 processing plants on the bank of Calera and Amarillo rivers, causing a significant degradati...
The CAMINAR Project perform during the 2007 and 2008 the evaluation of surface water and groundwater resources in the Poopó basin, in order to reach the management of this resources to safe access to water in the village in the basin. The studies attained to identify regions with social economy activities and different uses of the water. The region...
El presente marco de políticas resume la esencia y la misión de esta casa de estudios superiores
que establecen su carácter autónomo, nacional, democrático y científico. Este último, establece
que la UMSA genera conocimientos científicos, tecnológicos, culturales y humanísticos y utiliza los
adelantos de la ciencia y la tecnología, adecuándolos a l...
Hot springs occur in a large scale mainly along the Andes Mountains. This study deals with the assessment of physico-chemical characterization of thermal springs and their relationship to the distribution of arsenic (As) and other trace metals around the Poopó basin at the Oruro county in the Bolivian Altiplano. The thermal springs were characteriz...
Potosí is a world classical mining site, located in South West Bolivia. Mining activity is centered at the so-called Cerro Rico, an impressive mount formed by rhyolitic rocks affected by intensive hydrothermal alteration, and hosting a complex multivein deposit including mainly Ag and Sn minerals. From the starting of the mining activity, in the la...
Lake Poopó is a terminal lake of the Bolivian Altiplano, with high salinity and heavy anthropogenic pollution from centuries of extensive mining activity. This study aims to describe how the water quality of groundwater and surface water system in different subwater-sheds of the Lake Poopó varies with geology and hydrology. Measurements of total di...
This article completes the previous studies made in the zone of the metallurgical complex Vinto in Oruro - Bolivia, corroborating that its ecosystem is contaminated in both biotic and abiotic samples. Este artículo completa los estudios realizados anteriormente en la zona de la metalúrgica Vinto en Oruro - Bolivia, comprobándolo un ecosistema conta...
This is a study about the quality of the hydro resources in the Apolo county, La Paz Department, in Bolivia. The quality survey involves the physicochemical characteristics of human consumption water and water for other applications. The sampling process was applied to the main systems of water collecting. According to the water use we have taken i...
Al menos cuatro millones de personas en países de América del Sur, entre ellos
Argentina, Chile y Perú (Figura 7.1), en donde el problema se conoce desde hace
décadas, utilizan agua contaminada con As (>50 μg L-1). La magnitud de la
contaminación con As en algunos países, por ejemplo en Argentina (y también en Chile
hasta 1970), en donde más del 3%...
At least 4 million people depend on drinking water with toxic arsenic (As) concentrations
in Argentina, Bolivia, Chile, Mexico and Peru, which primarily originate from geogenic
sources. In other Latin-American countries, the occurrence of the problem and/or the number of
exposed people is still unknown. This chronic As exposure is associated with n...
In Argentina, Chile, Bolivia, Peru, and Mexico at least 4 million of persons depend on drinking water with toxic arsenic concentrations (>50 μg/L), which mostly originate from geogenic sources. In other Latin-American countries the occurrence of the problem and/or the number of exposed persons is yet unknown. This chronic arsenic exposure is associ...
Este estudio tiene como objetivo desarrollar y aplicar técnicas abióticas y bióticas para degradar hidrocarburos totales de petróleo (TPHs) en suelos y aguas subterráneas. El estudio consiste en sintetizar nanopartículas metálicas para aplicarlas a suelos y aguas subterráneas contaminadas y producir el fraccionamiento de las cadenas voluminosas de...
The hydrochemistry study is developed, with the intention of knowing the quality groundwater in function the physicalchemistry characteristics and heavy metals: by natural effect and the mining activity in the north and east of the region of the Poopó lake. We studied the evolution of the salinity in function to the permanence time of groundwater....
The uptake of the heavy metals Cd, Zn, Pb, As, and Fe by aquatic plants — thereby entering the human food chain — was studied in the Poopó basin, located in the semiarid, central Andean highland of Bolivia. At twenty sites around Poopó and Uru-Uru lakes, samples of aquatic plants, sediments, surface water and groundwater were taken. The spatial dis...
The uptake of the heavy metals Cd, Zn, Pb, As, and Fe by aquatic plants — thereby entering the human food chain — was studied in the Poopó basin, located in the semiarid, central Andean highland of Bolivia. At twenty sites around Poopó and Uru-Uru lakes, samples of aquatic plants, sediments, surface water and groundwater were taken. The spatial dis...
