Browsing by Subject "Arsenic"

Now showing items 1-20 of 21

    • Adsorption of As (V) by poly (N-octyl-4-vinylpyridinium) bromide: Determination of As (V) by direct measurement ... 
      González Navarrete, Javier; Toral Ponce, María; Leiva, Angel; Yazdani-Pedram Zobeiri, Mehrdad; Ríos, Hernán; Briones-Olarán, Ximena; Urzúa Acevedo, Marcela (Elsevier B.V., 2016)
      Adsorption of As (V) by poly (N-octyl-4-vinylpyridinium) bromide (P4VPyC8), used as solid phase, was studied. Determination of As (V) was carried out by direct measurement of the fluorescence intensity on the solid phase. ...
    • Arsenic exposure, profiles of urinary arsenic species, and polymorphism effects of glutathione-s-transferase ... 
      González-Martínez, Farith; Sánchez-Rodas, Daniel; Cáceres, Dante D.; Martínez, Matías F.; Quiñones Sepúlveda, Luis; Johnson-Restrepo, Boris (Elsevier Ltd, 2018)
      © 2018 Elsevier Ltd This study assessed the effects of polymorphic variants of gutathione-S-transferase and metallothioneins on profiles of urinary arsenic species. Drinking groundwater from Margarita and San Fernando, ...
    • As3MT and GST Polymorphisms Influencing Arsenic Metabolism in Human Exposure to Drinking Groundwater 
      González Martínez, Farith; Sánchez Rodas, Daniel; Varela Figueroa, Nelson; Sandoval, Christopher A.; Quiñones Sepúlveda, Luis; Johnson Restrepo, Boris (MDPI, 2020)
      The urinary arsenic metabolites may vary among individuals and the genetic factors have been reported to explain part of the variation. We assessed the influence of polymorphic variants of Arsenic-3-methyl-transferase and ...
    • Carcinogenic and non-carcinogenic health risks of arsenic exposure in drinking water in the rural environment 
      Mahan, D.; Waissblut, O.; Cáceres, D. (Iran Solid Waste Association, 2020)
      Carcinogenic and systemic health effects of arsenic exposure in drinking water are well documented. This study estimated the risk associated with chronic consumption of water with high concentrations of arsenic in children ...
    • Circulating Arsenic is Associated with Long-Term Risk of Graft Failure in Kidney Transplant Recipients: A ... 
      Sotomayor, Camilo G.; Groothof, Dion; Vodegel, Joppe J.; Gacitúa, Tomás A.; Gomes Neto, António W.; Osté, Maryse C. J.; Pol, Robert A.; Ferreccio, Catterina; Berger, Stefan P.; Chong, Guillermo; Slart, Riemer H. J. A.; Rodrigo Salinas, Ramón; Navis, Gerjan J.; Touw, Daan J.; Bakker, Stephan J. L. (MDPI, 2020)
      Arsenic is toxic to many organ systems, the kidney being the most sensitive target organ. We aimed to investigate whether, in kidney transplant recipients (KTRs), the nephrotoxic exposure to arsenic could represent an ...
    • Cognitive performance among cohorts of children exposed to a waste disposal site containing heavy metals in Chile 
      Burgos, Soledad; Tenorio, Marcela; Zapata, Pamela; Cáceres, Dante D.; Klarian, José; Alvarez, Nancy; Oviedo, Renato; Toro-Campos, Rosario; Claudio, Luz; Iglesias, Verónica (Taylor and Francis Ltd., 2017)
      © 2017 Informa UK Limited, trading as Taylor & Francis Group. Between 1984 and 1998, people living in Arica were involuntarily exposed to metal-containing waste stored in the urban area. The study aims to determine whether ...
    • Constraints on the solid solubility of Hg, Tl, and Cd in arsenian pyrite 
      Deditius, Artur P.; Reich Morales, Martín (Mineralogical Society of America, 2016)
      Arsenic-rich (arsenian) pyrite can contain up to tens of thousands of parts per million (ppm) of toxic heavy metals such as Hg, Tl, and Cd, although few data are available on their solid solubility behavior. When a compilation ...
    • Effect of biosolid incorporation on arsenic distribution in Mollisol soils in central Chile 
      Ascar Estay, María Loreto; Ahumada Torres, Aída Inés de Lourdes; Richter Duk, Pablo (PERGAMON-ELSEVIER SCIENCE LTD, 2008-01)
      The effect of biosolid incorporation on arsenic distribution in Mollisol soils in central Chile was studied. Two soils were sequentially extracted for arsenic with a five-step method that accounts for the following arsenic ...
    • The effect of substrate media on the removal of arsenic, boron and iron from an acidic wastewater in planted ... 
      Lizama Allende, Katherine Eugenia; Fletcher, T.D.; Sun, G. (Elsevier, 2012-01)
      Acidic wastewaters, such as occur in acid mine drainage, typically contain heavy metals and metalloids that pose a serious threat to receiving waters, due to their high toxicity. In this study, vertical flow wetland columns, ...
    • Fetal growth restriction is related to placental levels of cadmium, lead and arsenic but not with antioxidant ... 
      Llanos Silva, Miguel; Ronco Macchiavello, Ana María (2009)
      The objectives of this study were: to measure some essential metals and toxicants in placentas of mothers delivering neonates with fetal growth restriction, and to establish potential associations between environmental ...
    • Impact of arsenic exposure on clinicopathological characteristics of bladder cancer: a comparative study ... 
      Fernández, Mario I.; Valdebenito, Patricio; Delgado, Iris; Segebre, Jorge; Chaparro, Eduardo; Fuentealba, David; Castillo, Martín; Vial, Cecilia; Barroso, Juan P.; Ziegler, Annemarie; Bustamante, Alberto (Elsevier, 2020)
      Background: Beyond exposure to arsenic in drinking-water, there is few information about demographic and clinicopathological features of patients with bladder cancer living in arsenic-exposed regions. The aim of the study ...
    • Influence of as(V) on precipitation and transformation of schwertmannite in acid mine drainage-impacted waters 
      Cruz-Hernández, Pablo; Carrero, Sergio; Pérez-López, Rafael; Fernandez-Martinez, Alejandro; Lindsay, Matthew B.J.; Dejoie, Catherine; Nieto, José M. (E. Schweizerbart'sche Verlagsbuchhandlung, 2019)
      Iron-rich sediments commonly cover riverbeds affected by acid mine drainage (AMD). Initial precipitates are often dominated by schwertmannite, which has an exceptionally high capacity to sequester As and other toxic elements. ...
    • The influence of media type on removal of arsenic, iron and boron from acidic wastewater in horizontal flow ... 
      Lizama Allende, Katherine Eugenia; McCarthy, D. T.; Fletcher, T. D. (Elsevier, 2014)
      In this study, horizontal flow wetland microcosms were used to test the effectiveness of two media types: (1) zeolite and (2) a series of limestone and cocopeat in the removal of arsenic (As), boron (B) and iron (Fe) ...
    • Low-level arsenic exposure during pregnancy and its association with postpartum depression: a cohort study ... 
      Valdés, M.; Hanchey, A.; Muñoz, M. P.; Baumert, B.; Iglesias Álamos, Verónica (Masson Editeur, 2017)
      Background. - While the relationship between inorganic arsenic exposure and psychological impairment has been studied previously, the association between low-level arsenic exposure during pregnancy and postpartum depression ...
    • Melatonin protective role in mouse cauda epipidymal spermatozoa damage induced by sodium arsenite Rol ... 
      Bustos-Obregón, Eduardo; Poblete, Daniel; Catriao, Roberto; del Sol, Mariano; Fernandes, Fábio Henrique (2013)
      We evaluated the sperm parameters such as cauda epididymis weight, sperm count, sperm morphology and sperm DNA stability of adult CF-1 male mice treated daily (oral exposure) with the toxic sodium arsenite (As, 7.0 mg/kg/body ...
    • Obesity and excess weight in early adulthood and high risks of arsenic-related cancer in later life 
      Steinmaus, Craig; Castriota, Felicia; Ferreccio, Catterina; Smith, Allan H.; Yuan, Yan; Liaw, Jane; Acevedo, Johanna; Pérez, Liliana; Meza, Rodrigo; Calcagno, Sergio; Uauy Dagach-Imbarack, Ricardo; Smith, Martyn T. (Elsevier, 2015)
      Background: Elevated body mass index (BMI) is a risk factor for cardiovascular disease, diabetes, cancer, and other diseases. Inflammation or oxidative stress induced by high BMI may explain some of these effects. Millions ...
    • Rice Grain Cadmium Concentrations in the Global Supply-Chain 
      Shi, Zhengyu; Carey, Manus; Meharg, Caroline; Williams, Paul N.; Signes Pastor, Antonio J.; Triwardhani, Eridha Ayu; Pandiangan, Febbyandi Isnanda; Campbell, Katrina; Elliott, Christopher; Marwa, Ernest M.; Jiujin, Xiao; Gomes Farías, Julia; Nicoloso, Fernando Teixeira; De Silva, P. Mangala C. S.; Lu, Ying; Norton, Gareth; Adomako, Eurek; Green, Andy J.; Moreno Jiménez, Eduardo; Zhu, Yongguan; Carbonell Barrachina, Ángel Antonio; Haris, Parvez I.; Lawgali, Youssef F.; Sommella, Alessia; Pigna, Massimo; Brabet, Catherine; Montet, Didier; Njira, Keston; Watts, Michael J.; Hossain, Mahmud; Islam, M. Rafiqul; Tapia Fernández, Yasna; Oporto, Carla; Meharg, Andrew A. (Springer, 2020)
      One of cadmium's major exposure routes to humans is through rice consumption. The concentrations of cadmium in the global polished (white), market rice supply-chain were assessed in 2270 samples, purchased from retailers ...
    • Spina bifida occulta associated with environmental arsenic exposure in a prehispanic sample from northern ... 
      Silva-Pinto, Verónica; Arriaza, Bernardo; Standen, Vivien (2010)
      Background: The Camarones River Valley, located in the extreme north of Chile, is characterized by high environmental arsenic levels and an arid desert. It has been inhabited by humans for the past 7,000 years. Evidence ...
    • The arsenic fault-pathfinder: A complementary tool to improve structural models in mining 
      Carrizo, Daniel; Barros, Carlos; Velasquez, German (MDPI AG, 2018)
      In a mining operation, the structural model is considered as a first-order data required for planning. During the start-up and in-depth expansion of an operation, whether the case is open-pit or underground, the structural ...
    • Treatment of acidic mine drainage in an adsorption process using calcium silicate modified with Fe(III) 
      Barrera, Kamila; Briso, Alejandro; Ide, Viviana; Martorana, Leonardo; Montes Atenas, Gonzalo; Basualto Flores, Carlos; Borrmann, Thomas; Valenzuela Lozano, Fernando (Elsevier, 2017)
      Two compounds based on calcium silicate hydrate and modified with Fe(III), using FeCl3 and Fe(OH)(3) as iron sources, were synthesized, characterized and evaluated as adsorbents for removing ionic species from an arsenic ...