Sediments as monitors of heavy metal contamination in the Ave river basin (Portugal): multivariate analysis of data

• Tipo: Artigo em Revista Científica Internacional
• Data: 1999

Autores

Soares, HMVM (Autor) FEUP; Boaventura, RAR (Autor) FEUP; Machado, AASC (Autor) FCUP; da Silva, JCGE (Autor) FCUP

Revista

Título: Environmental Pollution

Vol. 105

Páginas: 311-323

ISSN: 0269-7491

Editora: Elsevier

Indexação

ISI Web of Knowledge - 254 Citações

ISI Web of Science

Scopus - 297 Citações

COMPENDEX

Classificação Científica

FOS: Ciências exactas e naturais > Ciências da terra e ciências do ambiente

Outras Informações

ID Authenticus: P-001-5JW

DOI: 10.1016/s0269-7491(99)00048-2

Abstract (EN): The concentrations of heavy metals (Cd, Cr, Cu, Ni, Pb, Zn) were determined in river sediments collected at the Ave river basin (Portugal) to obtain a general classification scenery of the pollution in this highly polluted region. Multivariate data analysis techniques of clustering, principal components and eigenvector projections were used in this classification. Five general areas with different polluting characteristics were detected and several individual heavy metal concentration abnormalities were detected in restricted areas. A good correlation between the overall metal contamination determined by multivariate analysis and metal pollution indexes for all sampling stations was obtained. Some preliminary experiments showed that the metal concentrations normalised to the volatile matter content in the sediment fraction with grain size < 63 mu m seems to be an adequate method for assessing metal pollution.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 13