2009
DOI: 10.1007/s11356-009-0116-6
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Analytical and chemometric characterization of the Cruces River in South Chile

Abstract: The impact of copper should be examined in further investigations. The Pichoy River, with high concentrations of iron in the filtrate, should be examined as well. Studies about the chemical equilibrium of iron and manganese oxides in relation to the alkaline and earth alkaline elements should take place.

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Cited by 28 publications
(11 citation statements)
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“…However, the generated databases are large and complex that their analyses require robust analytical tools. Multivariate statistical techniques, such as principal component analysis (PCA) and factor analysis (FA), are widely used for the evaluation of both temporal and spatial variations and the interpretation of large and complex water quality datasets (Bhat et al, 2014;Duan et al, 2016;Juahir et al, 2011;Kim et al, 2005;Kowalkowski et al, 2006;Kumar et al, 2014;Muangthong and Shrestha, 2015;Mustapha and Aris, 2012;Schaefer and Einax, 2010;Shrestha and Kazama, 2007;Simeonov et al, 2003;Singh et al, 2004Singh et al, , 2005Singh et al, , 2012Wunderlin et al, 2001;Xiao et al, 2016). PCA/FA is a dimension-reduction technique that provides information by the most significant factors with a simpler representation of the data.…”
Section: Introductionmentioning
confidence: 99%
“…However, the generated databases are large and complex that their analyses require robust analytical tools. Multivariate statistical techniques, such as principal component analysis (PCA) and factor analysis (FA), are widely used for the evaluation of both temporal and spatial variations and the interpretation of large and complex water quality datasets (Bhat et al, 2014;Duan et al, 2016;Juahir et al, 2011;Kim et al, 2005;Kowalkowski et al, 2006;Kumar et al, 2014;Muangthong and Shrestha, 2015;Mustapha and Aris, 2012;Schaefer and Einax, 2010;Shrestha and Kazama, 2007;Simeonov et al, 2003;Singh et al, 2004Singh et al, , 2005Singh et al, , 2012Wunderlin et al, 2001;Xiao et al, 2016). PCA/FA is a dimension-reduction technique that provides information by the most significant factors with a simpler representation of the data.…”
Section: Introductionmentioning
confidence: 99%
“…It is crowned by the 2004 environmental changes associated with the industrial activity of a pulp mill plant located in the wetland catchment area (Escaida et al, 2014). Most studies related to the CRW realm ecology are focused on ecosystem components that were notoriously affected by changes, for example, in water quality (Woelfl et al, 2006;Lagos et al, 2008;Schaefer & Einax, 2010), aquatic macrophytes (Pinochet et al, 2005;Ramírez et al, 2006;Jaramillo et al, 2007;Marín et al, 2009;Palma et al, 2013), and water birds (Jaramillo et al, 2007;Lagos et al, 2008;González & Fariña, 2013). Those research lines arose from the occurrence of those environmental changes, not as a particular intention to obtain integral knowledge about the physicochemical and biological structure of the wetland.…”
Section: ___________________mentioning
confidence: 99%
“…San Martín et al (2010) Se concluye que la radiación UV no es la causa de la mortalidad de Egeria densa, pero que la que radiación solar intensa reduce su contenido de clorofila. Schaefer & Einax (2010) Se analiza muestras químicas de agua y sedimentos, concluyendo que el emisario de la planta de celulosa no es lo suficientemente contaminante como para ser una influencia negativa en el humedal. Schwarz et al (2012) Se analiza la capacidad de los sedimentos del humedal para reducir el clorato a cloruro y concluyen que estos pueden hacerlo con independencia de la existencia de la planta de celulosa.…”
Section: Referenciaunclassified
“…Respecto de la primera perspectiva, los artículos de Lopetegui et al (2007) y Lagos et al (2008) infieren que la Planta Valdivia podría haber sido la causante de las modificaciones observadas en el humedal durante el período 2004-2005 (Tabla 1). Con posterioridad, Schaefer & Einax (2010) basados en muestras tomadas en febrero 2007, concluyen que el efluente de la Planta Valdivia no es lo suficientemente contaminante, sobre la base de los parámetros analizados, y que por tanto una influencia negativa sobre el ecosistema no se puede probar. Así, la información disponible no permite establecer con suficiente certeza si la Planta Valdivia tuvo un efecto directo en el humedal, condición que ya había propuesto la misión Ramsar el 2005 (Di Marzio & McInnes, 2005), pero bajo las condiciones actuales ese efecto parece poco probable.…”
Section: El Factor Planta De Celulosaunclassified