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https://hdl.handle.net/10216/96390| Author(s): | Cidália M. S. Botelho Rui A. R. Boaventura Judite S. Vieira |
| Title: | Trace Metal Fractionation by the Sequential Extraction Method in Sediments from the Lis River (Portugal) |
| Issue Date: | 2009 |
| Abstract: | The extractable contents of Zn, Pb, Cu, Cr, Mn, Ni, Fe and Al were evaluated in sediments from the Lis River (Portugal) using the three- step sequential extraction procedure described by Community Bureau of Reference (BCR, now the Standards, Measurement and Testing Programme) of the European Union. The distribution of trace metals among the exchangeable, water and acid soluble, reducible, oxidizable and residual fractions was determined. The highest metal concentrations were observed in samples collected at the most polluted river sites (animal husbandry, domestic, industrial and agricultural wastes). Pb, Cu, Cr, Ni, Fe and Al were found mainly associated with the residual and organic fractions. High concentrations of Zn and Mn were found in the exchangeable/acid soluble fraction. |
| Subject: | Ciências do ambiente, Ciências da engenharia e tecnologias Environmental science, Engineering and technology |
| Scientific areas: | Ciências da engenharia e tecnologias Engineering and technology |
| URI: | https://repositorio-aberto.up.pt/handle/10216/96390 |
| Document Type: | Artigo em Revista Científica Internacional |
| Rights: | restrictedAccess |
| Appears in Collections: | FEUP - Artigo em Revista Científica Internacional |
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| File | Description | Size | Format | |
|---|---|---|---|---|
| 57942.pdf Restricted Access | 532.45 kB | Adobe PDF | Request a copy from the Author(s) |
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