Search Results - "Velasquez, Patricio"

Mercury contamination from artisanal gold mining in Antioquia, Colombia: The world's highest per capita mercury pollution by Cordy, Paul, Veiga, Marcello M., Salih, Ibrahim, Al-Saadi, Sari, Console, Stephanie, Garcia, Oseas, Mesa, Luis Alberto, Velásquez-López, Patricio C., Roeser, Monika

“…The artisanal gold mining sector in Colombia has 200,000 miners officially producing 30 tonnes Au/a. In the Northeast of the Department of Antioquia, there are…”
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Processing centres in artisanal gold mining by Veiga, Marcello M., Angeloci, Gustavo, Hitch, Michael, Colon Velasquez-Lopez, Patricio

“…The aim of this paper is to reflect on efforts made worldwide to construct processing centres where artisanal miners can visit to have gold extracted from ore…”
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High-resolution LGM climate of Europe and the Alpine region using the regional climate model WRF by Russo, Emmanuele, Buzan, Jonathan, Lienert, Sebastian, Jouvet, Guillaume, Velasquez Alvarez, Patricio, Davis, Basil, Ludwig, Patrick, Joos, Fortunat, Raible, Christoph C

“…In this study we present a series of sensitivity experiments conducted for the Last Glacial Maximum (LGM, ∼21 ka) over Europe using the regional climate…”
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Cyanidation of mercury-rich tailings in artisanal and small-scale gold mining: identifying strategies to manage environmental risks in Southern Ecuador by Velásquez-López, Patricio C., Veiga, Marcelo M., Klein, Bern, Shandro, Janis A., Hall, Ken

“…In many countries, such as Brazil, Colombia, Ecuador, Indonesia, Venezuela and Zimbabwe, amalgamated tailings are leached with cyanide to recover remaining…”
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Surface ozone in the Southern Hemisphere: 20 years of data from a site with a unique setting in El Tololo, Chile by Anet, Julien G, Steinbacher, Martin, Gallardo, Laura, Velásquez Álvarez, Patricio A, Emmenegger, Lukas, Buchmann, Brigitte

“…The knowledge of surface ozone mole fractions and their global distribution is of utmost importance due to the impact of ozone on human health and ecosystems…”
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Mercury balance in amalgamation in artisanal and small-scale gold mining: identifying strategies for reducing environmental pollution in Portovelo-Zaruma, Ecuador by Velásquez-López, Patricio C., Veiga, Marcello M., Hall, Ken

“…The gold ore mined by artisanal and small-scale miners in Portovelo-Zaruma, Ecuador, is processed in custom mills. Miners can choose between Chilean-mill…”
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Air Mercury Contamination in the Gold Mining Town of Portovelo, Ecuador by González-Carrasco, Víctor, Velasquez-Lopez, Patricio C., Olivero-Verbel, Jesús, Pájaro-Castro, Nerlis

“…Portovelo is one of the oldest gold mining towns in Ecuador. Artisanal gold mining still uses mercury in the process of gold recovery. In this study, mercury…”
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Establishing a community of practice of researchers, practitioners, policy-makers and communities to sustainably manage environmental health risks in Ecuador by Spiegel, Jerry M, Breilh, Jaime, Beltran, Efrain, Parra, Jorge, Solis, Fernanda, Yassi, Annalee, Rojas, Alejandro, Orrego, Elena, Henry, Bonnie, Bowie, William R, Pearce, Laurie, Gaibor, Juan, Velasquez, Patricio, Concepcion, Miriam, Parkes, Margot

“…The Sustainably Managing Environmental Health Risk in Ecuador project was launched in 2004 as a partnership linking a large Canadian university with leading…”
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Application of electrical resistivity imaging (ERI) to a tailings dam project for artisanal and small-scale gold mining in Zaruma-Portovelo, Ecuador by Zarroca, Mario, Linares, Rogelio, Velásquez-López, Patricio C., Roqué, Carles, Rodríguez, Roberto

“…Thanks to advances in geoelectrical resistivity method over the past two decades, researchers can now gather massive geophysical data sets encompassing long…”
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The first twenty years (1994-2014) of ozone soundings from Rapa Nui (27°S, 109°W, 51 m a.s.l.) by Gallardo, Laura, HenrÍquez, Adolfo, Thompson, Anne M., Rondanelli, Roberto, Carrasco, Jorge, Orfanoz-Cheuquelaf, Andrea, Velásquez, Patricio

“…Ozone (O 3 ) soundings have been performed on Easter Island or Rapa Nui (27 °S, 109 °W, 51 m a.s.l.) since 1994 as part of the Global Atmospheric Watch…”
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A new bias-correction method for precipitation over complex terrain suitable for different climate states: a case study using WRF (version 3.8.1) by Velasquez, Patricio, Messmer, Martina, Raible, Christoph C

“…This work presents a new bias-correction method for precipitation over complex terrain that explicitly considers orographic characteristics. This consideration…”
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The role of ice-sheet topography in the Alpine hydro-climate at glacial times by Velasquez, Patricio, Messmer, Martina, Raible, Christoph C

“…In this study, we investigate the sensitivity of the glacial Alpine hydro-climate to northern hemispheric and local ice-sheet changes. Bridging the scale gap…”
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The role of land cover in the climate of glacial Europe by Velasquez, Patricio, Kaplan, Jed O, Messmer, Martina, Ludwig, Patrick, Raible, Christoph C

“…Earth system models show wide disagreement when simulating the climate of the continents at the Last Glacial Maximum (LGM). This disagreement may be related to…”
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Identification of topographic features influencing aerosol observations at high altitude stations by Collaud Coen, Martine, Andrews, Elisabeth, Aliaga, Diego, Andrade, Marcos, Angelov, Hristo, Bukowiecki, Nicolas, Ealo, Marina, Fialho, Paulo, Flentje, Harald, Hallar, A. Gannet, Hooda, Rakesh, Kalapov, Ivo, Krejci, Radovan, Lin, Neng-Huei, Marinoni, Angela, Ming, Jing, Nguyen, Nhat Anh, Pandolfi, Marco, Pont, Véronique, Ries, Ludwig, Rodríguez, Sergio, Schauer, Gerhard, Sellegri, Karine, Sharma, Sangeeta, Sun, Junying, Tunved, Peter, Velasquez, Patricio, Ruffieux, Dominique

“…High altitude stations are often emphasized as free tropospheric measuring sites but they remain influenced by atmospheric boundary layer (ABL) air masses due…”
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The First Twenty Years (1994 2014) of Ozone Soundings from Rapa Nui (27 deg S, 109 deg W, 51 m a.s.l.) by Gallardo, Laura, Henriquez, Adolfo, Thompson, Anne M., Rondanelli, Roberto, Carrasco, Jorge, Orfanoz-Cheuquelaf, Andrea, Velasquez, Patricio

“…Ozone (O3) soundings have been performed on Easter Island or Rapa Nui (27 8S, 109 8W, 51 m a.s.l.) since 1994 as part of the Global Atmospheric Watch Programme…”
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Women mine-rock waste collectors in artisanal and small-scale mining in Ecuador: Challenges and opportunities by Velásquez-López, Patricio Colón, Páez-Varas, Claudia, Benavides-Zúñiga, Ximena, Gallegos, Francisco, Fallon, Gerald

“…•In Ecuador, women mine-waste collectors (“jancheras”) lack a mining title.•The low educational level, vulnerability, and informality of their work leave women…”
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CRECIMIENTO URBANO Y VULNERABILIDAD AL CAMBIO CLIMÁTICO DE CALDERÓN EN EL DISTRITO METROPOLITANO DE QUITO, ECUADOR by Villavicencio-Ordóñez, Johanna Elizabeth, López-Guzmán, Diana Raquel, Velásquez-Cajas, Ángel Patricio

“…RESUMEN La parroquia Calderón, ubicada en el Distrito Metropolitano de la ciudad de Quito, presenta una dinámica espacial característica de los procesos de…”
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Critical analysis of intercultural discourse in Facebook. Case: ‘Conaie Comunicación’ by Franklin Ricardo Falconi Calvachi, Ángel Patricio Velásquez Cajas, Karla Mishel Lema Flores, Pablo Esteban Lomas Chacón

“…Abstract Since its inception, the Ecuadorian indigenous movement represented by the Confederation of Indigenous Nationalities of Ecuador, CONAIE, has set…”
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Author Correction: Palaeoclimate constraints on the impact of 2 °C anthropogenic warming and beyond by Fischer, Hubertus, Meissner, Katrin J., Mix, Alan C., Abram, Nerilie J., Austermann, Jacqueline, Brovkin, Victor, Capron, Emilie, Colombaroli, Daniele, Daniau, Anne-Laure, Dyez, Kelsey A., Felis, Thomas, Finkelstein, Sarah A., Jaccard, Samuel L., McClymont, Erin L., Rovere, Alessio, Sutter, Johannes, Wolff, Eric W., Affolter, Stéphane, Bakker, Pepijn, Ballesteros-Cánovas, Juan Antonio, Barbante, Carlo, Caley, Thibaut, Carlson, Anders E., Churakova (Sidorova), Olga, Cortese, Giuseppe, Cumming, Brian F., Davis, Basil A. S., de Vernal, Anne, Emile-Geay, Julien, Fritz, Sherilyn C., Gierz, Paul, Gottschalk, Julia, Holloway, Max D., Joos, Fortunat, Kucera, Michal, Loutre, Marie-France, Lunt, Daniel J., Marcisz, Katarzyna, Marlon, Jennifer R., Martinez, Philippe, Masson-Delmotte, Valerie, Nehrbass-Ahles, Christoph, Otto-Bliesner, Bette L., Raible, Christoph C., Risebrobakken, Bjørg, Goñi, María F. Sánchez, Arrigo, Jennifer Saleem, Sarnthein, Michael, Sjolte, Jesper, Stocker, Thomas F., Alvárez, Patricio A. Velasquez, Tinner, Willy, Valdes, Paul J., Vogel, Hendrik, Wanner, Heinz, Yan, Qing, Yu, Zicheng, Ziegler, Martin, Zhou, Liping

“…In the version of this Review Article originally published, ref. 10 was mistakenly cited instead of ref. 107 at the end of the sentence: “This complexity of…”
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Mercury contamination from artisanal gold mining in Antioquia, Colombia: The world's highest per capita mercury pollution by CORDY, Paul, VEIGA, Marcello M, SALIH, Ibrahim, AL-SAADI, Sari, CONSOLE, Stephanie, GARCIA, Oseas, MESA, Luis Alberto, VELASQUEZ-LOPEZ, Patricio C, ROESER, Monika

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