Using fallout plutonium as a probe for erosion assessment.
J Environ Radioact
; 102(10): 937-42, 2011 Oct.
Article
em En
| MEDLINE
| ID: mdl-20638160
ABSTRACT
A study has been carried out to assess the potential of using fallout plutonium (Pu), which originated from atmospheric nuclear-weapons tests, as a tool to investigate recent erosional processes within the lower Cotter water-supply catchment in the Australian Capital Territory. This catchment, which was predominantly pine plantation, was severely affected by a major bush fire in 2003. Accelerator mass spectrometry has been used to measure Pu in soil samples collected from a number of sites across the catchment. The results indicate that less than 1cm of surface soil had been lost since the early 1960s over much of the catchment. Areas of more erodible soil have, however, lost 2-4cm of topsoil, and a loss of â¼6cm of soil was identified at one particular site.
Texto completo:
1
Coleções:
01-internacional
Contexto em Saúde:
2_ODS3
Base de dados:
MEDLINE
Assunto principal:
Poluentes Radioativos do Solo
/
Espectrometria de Massas
/
Monitoramento de Radiação
/
Monitoramento Ambiental
/
Plutônio
/
Sedimentos Geológicos
Tipo de estudo:
Evaluation_studies
País/Região como assunto:
Oceania
Idioma:
En
Revista:
J Environ Radioact
Ano de publicação:
2011
Tipo de documento:
Article