Ecotoxicity of aged uranium in soil using plant, earthworm and microarthropod toxicity tests.
Bull Environ Contam Toxicol
; 88(1): 43-7, 2012 Jan.
Article
em En
| MEDLINE
| ID: mdl-22033655
ABSTRACT
Discrepancies about probable no effect concentrations (PNEC) for uranium in soils may be because toxicity tests used freshly contaminated soils. This study used 3 soils amended with a range of uranium concentrations 10 years previously. The toxicity tests with northern wheatgrass (Elymus lanceolatus); earthworm (Eisenia andrei) were not affected below ~1,000 mg U kg(-1), and the soil arthropod Folsomia candida was not affected below ~350 mg U kg(-1). Survival of Orthonychiurus folsomi was diminished 20% (EC(20)) by ~85-130 mg U kg(-1), supporting a PNEC in the range of 100-250 mg U kg(-1) as derived previously.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Oligoquetos
/
Plantas
/
Artrópodes
/
Poluentes Radioativos do Solo
/
Urânio
/
Testes de Toxicidade
Idioma:
En
Revista:
Bull Environ Contam Toxicol
Ano de publicação:
2012
Tipo de documento:
Article
País de afiliação:
Canadá