Trace elements and Pb isotopes in soils and sediments impacted by uranium mining.
Sci Total Environ
; 566-567: 238-249, 2016 Oct 01.
Article
em En
| MEDLINE
| ID: mdl-27220101
ABSTRACT
The purpose of this study is to evaluate the contamination in As, Ba, Co, Cu, Mn, Ni, Sr, V, Zn and REE, in a high uranium activity (up to 21,000Bqâkg(-1)) area, downstream of a former uranium mine. Different geochemical proxies like enrichment factor and fractions from a sequential extraction procedure are used to evaluate the level of contamination, the mobility and the availability of the potential contaminants. Pb isotope ratios are determined in the total samples and in the sequential leachates to identify the sources of the contaminants and to determine the mobility of radiogenic Pb in the context of uranium mining. In spite of the large uranium contamination measured in the soils and the sediments (EFâ«40), trace element contamination is low to moderate (2Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Poluentes do Solo
/
Oligoelementos
/
Radioisótopos de Chumbo
/
Sedimentos Geológicos
/
Mineração
Idioma:
En
Ano de publicação:
2016
Tipo de documento:
Article