2004
DOI: 10.1016/s0003-2670(04)00180-1
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Using chemometric tools to assess anthropogenic effects in river waterA case study: Guadalquivir River (Spain)

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Cited by 49 publications
(51 citation statements)
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“…This criterion is adopted by various authors and may be observed in works like that of Mendiguchia et al (2004) upon evaluation of anthropogenic effects in water quality in the Guadalquivir river in the South of Spain, where through PC three hidrochemical factors were identified with variances above unity and explaining 79.1% of total variance of the data.…”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…This criterion is adopted by various authors and may be observed in works like that of Mendiguchia et al (2004) upon evaluation of anthropogenic effects in water quality in the Guadalquivir river in the South of Spain, where through PC three hidrochemical factors were identified with variances above unity and explaining 79.1% of total variance of the data.…”
Section: Resultsmentioning
confidence: 99%
“…Water quality indexes can inform possible alterations (degradation or recovery) of water resources in time and space (ANDRADE et al, 2005;MENDIGUCHIA et al, 2004;PESCE;WUNDERLIN, 2000;TOLEDO;NICOLLELA, 2002).…”
Section: Introductionmentioning
confidence: 99%
“…The statistical approach consisted of data analysis by principal component analysis (PCA) and agglomerative hierarchical clustering (AHC). Statistical methods such as PCA and AHC have been used in many studies aimed at the management of water monitoring networks (Kannel et al 2007;Mendiguchia et al 2004;Shrestha and Kazama 2007;Singh et al 2004Singh et al , 2005) and air quality management (Gramsch et al 2006;Pires et al 2008a,b). The study of Gramsch et al (2006) determined the seasonal trends and spatial distribution of PM 10 and O 3 for Santiago de Chile, concluding that the city had four large sectors with dissimilar air pollution variations, whereas the study conducted by Pires et al (2008a) classified SO 2 sites in six groups and PM 10 sites in two groups of dissimilar variation in Oporto Metropolitan Area.…”
Section: Methods Of Data Analysismentioning
confidence: 99%
“…De acordo com Mendonça e Leitão (2008), o problema da qualidade da água e da gestão dos recursos hídricos consiste em um dos mais graves da sociedade contemporânea. O conhecimento sobre a qualidade dos recursos hídricos de uma bacia consiste, portanto, em ferramenta de extrema importância, uma vez que a partir dessas informações é possível inferir sobre as condições da bacia hidrográfica como um todo (QUEIROZ et al, 2010).…”
Section: Introductionunclassified
“…Para interpretar este grande conjunto de dados qualitativos, técnicas de estatística multivariada como a Análise de Componentes Principais (ACP) e a Análise de Agrupamento Hierárquico (AAH) vêm sendo largamente utilizadas em estudos de caracterização e monitoramento de qualidade da água (MENDIGUCHÍA et al, 2004;ANDRADE et al, 2007aANDRADE et al, , 2007bGIRÃO et al, 2007;KAZI et al, 2009;PALÁCIO et al, 2009;TOBISZEWSKI et al, 2010;PALÁCIO et al, 2011).…”
Section: Introductionunclassified