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

• Type: Article in International Scientific Journal
• Date: 2010

Authors

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

Journal

Title: Chemometrics and Intelligent Laboratory Systems

Vol. 102 No. 2

Pages: 130-135

ISSN: 0169-7439

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 21 Citations

Scopus - 22 Citations

Scientific classification

FOS: Engineering and technology > Electrical engineering, Electronic engineering, Information engineering

CORDIS: Natural sciences > Environmental science > Water science > Water quality monitoring

Other information

Authenticus ID: 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6