Seasonal variation of air kerma rate in Sicily.
J Environ Radioact
; 99(7): 1149-53, 2008 Jul.
Article
em En
| MEDLINE
| ID: mdl-18342413
ABSTRACT
Thermoluminescence dosimetry has been used to measure air kerma in 29 sites in Sicily. Four three month measurement campaigns have been carried out in order to assess seasonal variations. Average annual values between 20 and 90 nGy h(-1), after cosmic background subtraction, are reported. Average annual values are strongly dependent on site lithology, and we find that winter data are generally the highest, while spring and autumn rates are generally the lowest with very similar trends in any site. Summer values generally lay in between. Largest seasonal variations are found in sites along the southern coast of the island, probably because of stronger action of winds affecting radon, along with its progeny, concentrations at ground level.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Estações do Ano
/
Monitoramento de Radiação
/
Poluentes Radioativos do Ar
Idioma:
En
Ano de publicação:
2008
Tipo de documento:
Article