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Mostrando ítems 1-10 de 16
Artículo
Self-cleaning in an estuarine area formerly affected by 226Ra anthropogenic enhancements: numerical simulations
(Elsevier, 2005)
A numerical model of the Odiel–Tinto estuary (Spain) has been developed to study the self-cleaning process that was evidenced from 226Ra measurements in water and sediments collected in the period 1999–2002, after direct ...
Artículo
Occupational dosimetric assessment (inhalation pathway) from the application of phosphogypsum in agriculture in South West Spain
(Elsevier, 2009)
Phosphogypsum (PG) has been traditionally applied as Ca-amendment in saline marsh soils in SW Spain, where available PG has 710 ± 40 Bq kg−1 of 226Ra. This work assesses the potential radiological risk for farmers through ...
Artículo
Self-cleaning in an estuarine area formerly affected by 226Ra anthropogenic enhancements
(Elsevier, 2004)
The estuary of the Odiel River has been affected by both direct discharges of phosphogypsum (radium enriched industrial waste) and dissolution and weathering of the exposed piles where this radium enriched waste was ...
Artículo
Measuring and modelling temporal trends of 226Ra in waters of a Spanish estuary affected by the phosphate industry
(Elsevier, 2005)
The presence and temporal evolution (1990–2001) of 226Ra in a tidal estuary affected by the phosphate industry has been investigated. Water samples collected in the course of four sep arate sampling campaigns were analysed ...
Artículo
Extensive radioactive characterization of a phosphogypsum stack in SW Spain: 226Ra, 238U, 210Po concentrations and 222Rn exhalation rate
(Elsevier, 2009)
Phosphogypsum (PG) is a by-product of the phosphate fertilizer industries that contains relatively high concentrations of uranium series radionuclides. The US-EPA regulates the agriculture use of PG, attending to its 226Ra ...
Artículo
The geochemical behavior of natural radionuclides in coastal waters: A modeling study for the Huelva estuary
(Elsevier, 2013)
A numerical model to study the behavior and distribution of natural radionuclides in sediments of an estuary (Odiel and Tinto rivers, SW Spain) affected by acid mine drainage and industrial activities has been developed. The ...
Artículo
Drain flow and related salt losses as affected by phosphogypsum amendment in reclaimed marsh soils from SW Spain
(Elsevier, 2011)
Phosphogypsum (PG), a by-product of the P industries, has been widely applied as an amendment to reduce Na saturation in soils. However, some concern arises due to its content of some metals and radionuclides. Thus, it ...
Artículo
Contamination and restoration of an estuary affected by phosphogypsum releases
(Elsevier, 2009)
The Huelva Estuary in Huelva, Spain, has been one of the most studied environmental compartments in the past years from the point of view of naturally occurring radioactive material (NORM) releases. It has been historically ...
Artículo
Nitrate loss from a tile-drained reclaimed marsh soil from SW Spain amended with different products
(Springer, 2011)
Tile drainage and soil amendments have been found to affect losses of nitrate N from agricultural soils. This work was aimed at measuring nitrate N losses in a tile-drained marsh soil from SW Spain under traditional ...
Artículo
The enhancement of Ra-226 in a tidal estuary due to the overation of fertilizer factories and redissolution from sediments: Experimental results and a modelling study
(Elsevier, 2002)
The presence of 226Ra in a tidal estuary formerly affected by direct discharges from a phosphate fertilizer complex has been investigated. In general, activity levels are lower than those detected when direct discharges ...