Mostrando 10 resultados de: 18
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Journal of Cleaner Production(4)
Boletin de Investigaciones Marinas y Costeras(2)
IPMI 38th Annual Conference "Precious Metals 2014: Back to the Future or Back to the Past"(2)
Science of the Total Environment(2)
BMC International Health and Human Rights(1)
Challenges to measuring, monitoring, and addressing the cumulative impacts of artisanal and small-scale gold mining in Ecuador
ArticleAbstract: Portovelo-Zaruma, Ecuador is an artisanal and small-scale gold mining (ASGM) region with approximatePalabras claves:Artisanal and small-scale gold mining (ASGM), Cross-scale policy mitigation methods, Cumulative effects assessment and management (CEAM), Cumulative impacts, Portovelo-Zaruma, Ecuador, Trans-boundary water pollutionAutores:Adler Miserendino R., Adler S., Bergquist B.A., Guimarães J.R.D., Lees P.S.J., Niquen W., Patricio Colon Velásquez-López, Veiga M.M.Fuentes:scopusAn investigation of mercury sources in the Puyango-Tumbes River: Using stable Hg isotopes to characterize transboundary Hg pollution
ArticleAbstract: Mercury (Hg) concentrations and stable isotopes along with other trace metals were examined in envirPalabras claves:Artisanal- and small-scale gold mining, Contaminant geochemistry, MC-ICP-MS, Mercury, Mercury stable isotopes, Trace metal geochemistryAutores:Bergquist B.A., Guimarães J.R.D., Lees P.S.J., Miserendino R.A., Patricio Colon Velásquez-López, Schudel G., Veiga M.M., Winland-Gaetz S.Fuentes:scopusCyanidation of mercury-rich tailings in artisanal and small-scale gold mining: Identifying strategies to manage environmental risks in Southern Ecuador
ArticleAbstract: In many countries, such as Brazil, Colombia, Ecuador, Indonesia, Venezuela and Zimbabwe, amalgamatedPalabras claves:Artisanal gold mining, Cyanidation, Mercury contamination, Mercury-rich tailings, Southern EcuadorAutores:Hall K., Klein B., Patricio Colon Velásquez-López, Shandro J.A., Veiga M.M.Fuentes:scopusApplication of electrical resistivity imaging (ERI) to a tailings dam project for artisanal and small-scale gold mining in Zaruma-Portovelo, Ecuador
ArticleAbstract: Thanks to advances in geoelectrical resistivity method over the past two decades, researchers can noPalabras claves:Artisanal gold mining, Electrical resistivity imaging (ERI), Tailings dam, Weathered granitic massif, Zaruma-portovelo mining districtAutores:Linares R., Patricio Colon Velásquez-López, Rodríguez R., Roqué C., Zarroca M.Fuentes:scopusAbsorption efficiency in post-larvae of the shrimp Litopenaeus vannamei fed a diet of marine yeast from mangrove mudflats
ArticleAbstract: The present study investigated marine yeast as a food source in the Pacific white shrimp LitopenaeusPalabras claves:Estuarine aquaculture, Food absorption, mangroves, Microorganisms, Pacific white shrimpAutores:Patricio Colon Velásquez-López, Solorzano-Reyes F.Fuentes:scopusAir mercury contamination in the gold mining town of Portovelo, Ecuador
ArticleAbstract: Portovelo is one of the oldest gold mining towns in Ecuador. Artisanal gold mining still uses mercurPalabras claves:Amalgamation, Artisanal-small-scale gold mining, Mercury, Southern EcuadorAutores:Olivero-Verbel J., Pájaro-Castro N., Patricio Colon Velásquez-López, Víctor Hugo González-CarrascoFuentes:scopusGravity concentration of gold in Nambija - Ecuador: The importance of process analysis for recovery success
Conference ObjectAbstract: Gold has been recovered from the Nambija mining zone by gravity concentration since the discovery ofPalabras claves:Autores:Ayala D.K., Espinosa P.A., Gustavo A. Muñoz, Patricio Colon Velásquez-López, Pazmiño I.C.Fuentes:scopusEstablishing a community of practice of researchers, practitioners, policy-makers and communities to sustainably manage environmental health risks in Ecuador
ReviewAbstract: Background: The Sustainably Managing Environmental Health Risk in Ecuador project was launched in 20Palabras claves:Autores:Alejandro Rojas, Annalee Yassi, Bonnie Henry, Bowie W.R., Breilh J., Concepcion M., Efraín Beltrán Ayala, Elena Orrego, Fernanda Solis, Henry B., Jaime Breilh, Jaime Eduardo Breilh Paz y Miño, Jerry M. Spiegel, Jorge Parra, Juan Gaibor, Juan Gaibor-Chávez, Laurie Pearce, Margot Parkes, Margot W. Parkes, María Fernanda Soliz Torres, Miriam Concepción, Orrego E., Parkes M., Parra J., Patricio Colon Velásquez-López, Patricio Velásquez, Pearce L., Rojas A., Solis F., Spiegel J.M., William R. Bowie, Yassi A.Fuentes:rraaescopusEvaluation of the project: Improvement of the working conditions of small-scale and artisanal mining in Ecuador. Historical background, current situation, and actions for the future
Conference ObjectAbstract: Small-scale gold mining in Ecuador takes place under precarious conditions basically due to lack ofPalabras claves:Autores:Ayala D.K., Espinosa P.A., Gustavo A. Muñoz, Patricio Colon Velásquez-López, Pazmiño I.C.Fuentes:scopusEstimation of the ecological and human health risk of mercury in a mangrove area of the La Puntilla estuary, El Oro province, southern Ecuador
ArticleAbstract: Present study focused on the evaluation of total mercury concentration and the estimation of ecologiPalabras claves:ANADARA TUBERCULOSA, Ecological risk index, mangrove ecosystem, MercuryAutores:Ivonne Yadira López Sánchez, María Fernanda Rivera-Velasquéz, Patricio Colon Velásquez-LópezFuentes:scopus