Listar Publicaciones Científicas Geociencias Aplicadas por autor "Martínez Villegas, Nadia Valentina"
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Laboratory synthesis of goethite and ferrihydrite of controlled particle sizes
Villacís García, Milton Henry; Ugalde Arzate, Mariana Teresita; Vaca Escobar, Katherine Rocío; Zanella, Rodolfo; Martínez Villegas, Nadia Valentina (2015)"Iron oxyhydroxides, such as goethite and ferrihydrite, are highly abundant and ubiquitous minerals in geochemical environments. Because of their small particle sizes, their surface reactivity is high towards adsorption ... -
Morphology and Solubility Products of Calcium Arsenates Found in Arsenic Contaminated Soils in an Abandoned Smelter
Martínez Villegas, Nadia Valentina; Martínez Salazar, Jessica; Fuentes Rivas, Rosa Maria; Avalos Borja, Miguel; Villalobos, Mario (2013)"The dissolution of calcium arsenates in residues released on the premises of an inactive smelter has caused high levels of arsenic pollution in the adjacent down-gradient 6 km of a perched aquifer, reaching up to 158 mg/L ... -
Optimizing the differential pulse anodic stripping voltammetry method with hanging mercury electrode for thallium (I) determination in the presence of lead (II) and copper (II) for application in contaminated soils
Cruz Hernández, Yusniel; Villalobos, Mario; González Chavez, José Luz; Martínez Villegas, Nadia Valentina (Universidad Nacional Autónoma de México, Universidad Autónoma de Tlaxcala, Universidad Veracruzana, Universidad Autónoma de Occidente, Centro de Ciencias de la Atmósfera, 2019)"The conditions that allow thallium (I) determination in the presence of lead (II) and copper (II) were optimized without prior separation of these cations, using a previously developed differential pulse anodic stripping ... -
Physicochemical characterization, elemental speciation and hydrogeochemical modeling of Santa Lucía peloid used for therapeutic uses
Suárez Muñoz, Margaret; Martínez Villegas, Nadia Valentina; González Hernández, Patricia; Melián Rodríguez, Clara; Barrios Cossio, Josiel; Hernández Díaz, Rebeca; Fagundo Catillo, Juan R.; Díaz Rizo, Oscar; Gelen Rudnicas, Alina; Díaz López, Cristina; Pérez Gramatges, Aurora (Centro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México,, 2018)"Santa Lucia peloid is a sediment, extracted from salt mines, used in pelotherapy in Cuban primary health care services. Therefore, in addition to classical quality control analyses of total metal concentrations in sediments, ... -
Removal of Cu, Cd, Pb and Zn from Contaminated Soil by Using Plant-Based Surfactants, Sapindus mukorossi L (Soapnut) and Acacia Concinna (Shikakai)
Cbibuzo Ugwu, Elijah; SenGupta, Bhaskar; Adebayo, Adeloye; Martínez Villegas, Nadia Valentina (IJESD, 2019)"The performance of two plant-based surfactants in the removal of heavy metals (Cu, Cd, Pb and Zn) from soil was studied ex-situ. Experimental parameters were: six soil-solution ratios (1:10, 1:20, 1:30, 1:40, 1:50 and ... -
Role of unsaturated soil above a heavily contaminated aquifer in the natural attenuation of arsenic
Martínez Villegas, Nadia Valentina; Gómez Hernández, Andrea Del Pilar; Zamora Morales, Armando; Hernández Martínez, Jejanny Lucero; Meza Figueroa, Diana María; SenGupta, Bhaskar (EDP Sciences, 2019)"Large attenuation of arsenic is observed in a shallow aquifer in central Mexico, where the concentration decreases from 91.5 to 11.3 mg/L, over 1.3 km horizontal distance. To investigate possible mechanisms of attenuation ... -
Síntesis de arseniatos de calcio (Guerinita, haidingerita y farmacolita) morfológicamente similares a los encontrados en suelos contaminados
Hernández Bárcenas, Luis Gerardo; Castillo, Francisco; Avalos Borja, Miguel; Martínez Villegas, Nadia Valentina (2017)"En el acuífero somero de Matehuala y Cerrito Blanco, en el estado de San Luis Potosí, México, se han reportado concentraciones de hasta 158 mg/L de arsénico cuya movilidad ha podido ser representada por la disolución de ... -
The labile fractions of metals and arsenic in mining?impacted soils are explained by soil properties and metal source characteristics
Guzmán Rangel, Georgina; Martínez Villegas, Nadia Valentina; Smolders, Erik (Wiley, 2020)"Isotopically exchangeable metals in soil, also termed labile metals, are reversibly bound to soil surface and are a better index of the environmental risk of the metals than are their total concentrations. In this study, ...