The uranium isotopes in the characterisation of groundwater in the Thermi-Vasilika region, northern Greece.
Isotopes Environ Health Stud
; 52(4-5): 405-13, 2016.
Article
em En
| MEDLINE
| ID: mdl-26981888
ABSTRACT
The activity concentrations of (238)U and (234)U have been determined in groundwater samples in the Thermi-Vasilika region, northern Greece. The analysis was performed by alpha spectrometry after pre-concentration and separation of uranium by cation exchange and finally its electrodeposition on stainless steel discs. The obtained isotopic ratio (234)U/(238)U varies between 0.95 and 3.50 and is correlated with the different aquifer types and water flow paths in the study area. Lower values (up to 1.10) are located in the shallow porous aquifer indicating younger waters. Moderate values of the activity ratio characterise the deeper porous aquifer as well as the fissured rock aquifer (1.5-2.05). The geothermal spring illustrates the highest activity ratio (3.5) due to older water.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Poluentes Radioativos da Água
/
Água Subterrânea
/
Monitoramento de Radiação
/
Urânio
País/Região como assunto:
Europa
Idioma:
En
Ano de publicação:
2016
Tipo de documento:
Article
País de afiliação:
Grécia