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Utilize este identificador para referenciar este registo: http://hdl.handle.net/10314/3880

Título: Multivariate analysis of the water quality variation in the Serra da Estrela (Portugal) Natural Park as a consequence of road deicing with salt.
Autores: Rodrigues, Pedro M.S.M.
Rodrigues, Ricardo M.M.
Costa, Bruno H.F.
Martins, António A.L. Tavares
Esteves da Silva, Joaquim C.G.
Palavras Chave: Multivariate analysis
Deicing salt
Water quality
Water salinization
Cluster analysis
Factor analysis
Data: 2010
Editora: Chemometrics and Intelligent Laboratory Systems
Resumo: The concentration of some anions (Cl, F, NO3, and SO4), cations (Na, K, Ca, and Mg), pH and conductivity was determined in seven sampling points in the Serra da Estrela Mountains (Portugal) to verify if the application of road deicing with salt provokes impact in the water quality. Multivariate chemometric data analysis techniques of clustering and factor analysis were used. Preliminary analysis shows an overall conductivity increase in late spring and a decrease in late summer. A strong association between sodium chloride and the conductivity was observed by cluster analysis. Factor analysis supports the previous results and shows that the variation of the concentration of sodium chloride is the main source of the variance of the data along the year. In conclusion, the spreading of salt during the winter creates a local and seasonal impact on the water quality.
URI: http://hdl.handle.net/10314/3880
Aparece nas Colecções:Artigos em Revista Internacional (ESTG)

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