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Mostrando ítems 1-10 de 19
Artículo
210Pb distribution in riverwaters and sediments near phosphate fertilizer factories
(Elsevier, 1996)
two fertilizer factories operate at the estuary formed by the Odiel and Tinto rivers in Southwestern Spain. In previous work the authors have shown that such operation enhances the natural radionuclide background of the ...
Artículo
Radioactive impact of phosphate ore processing in a wet marshland in southwestern Spain
(Elsevier, 1997)
In this paper an extensive study of the presence of natural radionuclides in a marshland area located in the vicinity of a phosphoric acid production complex in southwestern Spain is presented. This marsh is a natural ...
Artículo
Soil to plant transfer of 226 Ra in a marsh area: Modelling application
(Elsevier, 1998)
¹he Odiel river forms an estuarine system which surrounds a large marsh area. A phosphate fertilizer processing complex releases its wastes into the estuary. ¹he presence of 226Ra in soils and plants (Spartina Densiflora) ...
Artículo
U and Th speciation in river sediments
(Elsevier, 1995)
A study of the distribution of some natural radionuclides in different chemical fractions of river bottom sediments has been carried out. The study has shown that the majority of the total U in sediments is located in the ...
Artículo
Uranium and thorium concentrations in an estuary affected by phosphate fertilizer processing: Experimental results and a modelling study
(Elsevier, 1997)
The Odiel river, in southwest Spain, forms an estuarine system which is affected by waste disposal from a fertilizer complex. Uranium and thorium concentrations in waters and suspended matter, activity ratios and distribution ...
Artículo
Low-level radioactivity studies in the marine environment of the South of Spain
(Elsevier, 1992)
In this paper preliminary levels of natural and man-made radionuclides in the South Spanish marine environment are presented. Local man-made sources are found to be the main contributors to the natural environmental ...
Artículo
U- and Th-isotopes in an estuarine system in southwest Spain: Tidal and seasonal variations
(Elsevier, 1996)
The presence of U- and Th-isotopes in suspended matter from an estuarine system which surrounds a phosphate fertilizer processing complex has been investigated. A clear radioactive impact from the complex has been confirmed ...
Artículo
Distribution of natural radionuclides in sequentially extracted fractions of sediments from a marsh area in Southwest Spain: U isotopes
(Elsevier, 1999)
A study of the distribution of U in different fractions of intertidal sediments collected in a marsh area enhanced by the radioactive wastes discharged from a fertilizer complex has been carried out. The study has shown ...
Artículo
Anthropogenic emissions of Po-210, Pb-210 and Ra-226 in an estuarine environment
(Springer, 1996)
An extensive study on the distribution of natural radionuclides in an estuarine ecosystem located in Southwestern Spain is presented. This environment is highly affected by the wastes released by a phosphoric acid industry ...
Artículo
Anthropogenic contamination analyzed by TTPIXE in samples from the Odiel salt marsh at the SW Spain
(Springer, 1997)
The studied marsh area is located at the southwest of Spain in an estuarine system formed by the confluence of the Odiel river and the Atlantic ocean. 23 samples collected in the marsh have been analysed by Thick Target ...