6533b7d6fe1ef96bd1266def
RESEARCH PRODUCT
Accumulation and discharge behavior of Cs-137 by zebra fish (Brachydanio rerio) in different aquatic environments
H. O. DenschlagOlaf KelberAlok SrivastavaK. Urichsubject
RadionuclideChemistryHealth Toxicology and MutagenesisPotassiumAquatic ecosystemKineticsPublic Health Environmental and Occupational Healthchemistry.chemical_elementBioconcentrationPollutionAnalytical ChemistryNuclear Energy and EngineeringElimination rate constantFresh waterEnvironmental chemistryFish <Actinopterygii>Radiology Nuclear Medicine and imagingSpectroscopydescription
The uptake and release kinetics of137Cs from water by the tropical fishBrachydanio rerio has been studied under controlled laboratory condition. The accumulation of this radionuclide from food was avoided by feeding the fishes separately in an inactive environment. A steep inverse dependence of bioconcentration factor (BCF) with potassium concentration has been observed. This can formally be described by the equation BCF=5.2 · [K+]−0.44. The elimination rate constant K in fresh water conditions has been found to have a magnitude of 0.014±0.03 d−1 which corresponds to a biological half-life of 51±10 days. The uptake and release kinetics ofBrachydanio rerio has been compared with earlier studies of fresh water fishes.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1990-01-01 | Journal of Radioanalytical and Nuclear Chemistry Articles |