137Cs distribution among annual rings of different tree species contaminated after the Chernobyl accident.
J Environ Radioact
; 65(1): 19-28, 2003.
Article
em En
| MEDLINE
| ID: mdl-12683726
ABSTRACT
The distributions of 137Cs among annual rings of Pinus sylvestris and Betula pendula at four experimental sites located in the most contaminated areas in the Russian territory after the Chernobyl accident in 1986 were studied. Trees of different ages were sampled from four forest sites with different tree compositions and soil properties. The data analysis shows that 137Cs is very mobile in wood and the 1986 rings do not show the highest contamination. The difference between pine and birch in the pattern of radial 137Cs distribution can be satisfactorily explained by the difference in radial ray composition. 137Cs radial distribution in the wood can be described as the sum of two exponential functions for both species. The function parameters are height, age and species dependent. The distribution of 137Cs in birch wood reveals much more pronounced dependence on site characteristics and/or the age of trees than pines. The data obtained can be used to assess 137Cs content in wood.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Contexto em Saúde:
2_ODS3
Problema de saúde:
2_quimicos_contaminacion
Assunto principal:
Centrais Elétricas
/
Poluentes Radioativos
/
Césio
/
Liberação Nociva de Radioativos
/
Betula
/
Pinus
País/Região como assunto:
Europa
Idioma:
En
Revista:
J Environ Radioact
Assunto da revista:
SAUDE AMBIENTAL
Ano de publicação:
2003
Tipo de documento:
Article
País de afiliação:
França