Multivariate analysis of the water quality variation in the Serra da Estrela (Portugal) Natural Park as a consequence of road deicing with salt

• Tipo: Artigo em Revista Científica Internacional
• Data: 2010

Autores

Pedro M S M Rodrigues (Autor) Outra; Ricardo M M Rodrigues (Autor) Outra; Bruno H F Costa (Autor) Outra; Antonio A L T Tavares Martins (Autor) Outra; Joaquim C G E Esteves da Silva (Autor) FCUP

Revista

Título: Chemometrics and Intelligent Laboratory Systems

Vol. 102 Nº 2

Páginas: 130-135

ISSN: 0169-7439

Editora: Elsevier

Indexação

ISI Web of Knowledge - 22 Citações

Scopus - 23 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia electrotécnica, electrónica e informática

CORDIS: Ciências Naturais > Ciências do ambiente > Ciências da água > Monitorização da qualidade da água

Outras Informações

ID Authenticus: P-003-4TF

DOI: 10.1016/j.chemolab.2010.04.014

Abstract (EN): The concentration of some anions (Cl, F, NO(3). and SO(4)). 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.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 6