Radium isotopes in suspended matter in an estuarine system in the southwest of Spain |
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| Authors: | R Periáñez M García-León J M Abril |
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| Institution: | (1) Departmento Física Atómica, Molecular y Nuclear, Universidad de Sevilla, Apdo. 1065, 41080 Sevilla, (Spain);(2) Departmento Física Aplicada, E.U. de Ingeniería Técnica Agrícola, Univeridad de Sevilla, Ctra Utrera km 1, 41014 Sevilla, (Spain) |
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| Abstract: | The presence of226Ra and224Ra in suspended matter from an estuarine system which surrounds a phosphate fertilizer complex has been investigated. The results have confirmed an important radioactive impact from the industrial complex, since up to 2.5 Bq226Ra/g suspended matter (dry) has been measured. The influence of tides and seasonal conditions, through changes in salinity, has been found to be relevant. The distribution coefficients for226Ra between the suspended matter and the river water have been calculated. The values are in agreement by order of magnitude with those found in the literature, but they clearly depend on tidal state and seasonal conditions. |
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