Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/61582
Título: | Assessment of metal and metalloid contamination in soils trough compositional data: the old Mortórios uranium mine area, central Portugal |
Autor(es): | Neiva, A. M. R. Albuquerque, M. T. D. Antunes, Isabel Margarida Horta Ribeiro Carvalho, P. C. S. Santos, A. C. T. Boente, C. Cunha, P. P. Henriques, S. B. A. Pato, R. L. |
Palavras-chave: | Raw data Compositional data Spatial analysis Health risks Health risks Open pit lake Dumps |
Data: | 22-Jun-2019 |
Editora: | Springer |
Revista: | Environmental Geochemistry and Health |
Citação: | Neiva, A.M.R., Albuquerque, M.T.D., Antunes, I.M.H.R. et al. Environ Geochem Health (2019). https://doi.org/10.1007/s10653-019-00347-x |
Resumo(s): | Soils from the old Mortórios uranium mine area were studied to look for contamination, as they are close to two villages, up to 3 km away, and used for agriculture. They are mainly contaminated in U and As and constitute an ecological threat. This study attempts to outline the degree to which soils have been affected by the old mining activities through the computation of significant hot clusters, Traditional geostatistical approaches commonly use raw data (concentrations) accepting that the analyzed elements represent the soil’s entirety. However, in geochemical studies these elements are just a fraction of the total soil composition. Thus, considering compositional data is pivotal. The spatial characterization, considering raw and compositional data together, allowed a broad discussion about not only the concentrations’ spatial distribution, but also a better understanding on the possibility of trends of “relative enrichment” (RE) and, furthermore an insight in U and As fate. The highest proportions (Compositional data) on U (up to 33%), As (up to 35%) and Th (up to 13 %) are reached in the south-southeast segment. However, the highest concentrations (Raw data) occur in north and northwest of the studied area, pointing out to a “relative enrichment” towards the south-southeast zone. The Mondego Sul area is mainly contaminated in U and As, but also in Co, Cu, Pb and Sb. The Mortórios area is less contaminated than the Mondego Sul area. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/61582 |
DOI: | 10.1007/s10653-019-00347-x |
ISSN: | 0269-4042 |
e-ISSN: | 1573-2983 |
Versão da editora: | https://doi.org/10.1007/s10653-019-00347-x |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | CCT - Artigos (Papers)/Papers |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Neiva et al_2019_soils.pdf | 1,58 MB | Adobe PDF | Ver/Abrir |