Document Detail


Cesium accumulation by fish following acute input to lakes: a comparison of experimental and Chernobyl-impacted systems.
MedLine Citation:
PMID:  19375835     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
An uptake parameter u (Lkg(-1)d(-1)) and a loss rate parameter k (d(-1)) were estimated for the patterns of accumulation and loss of (133)Cs by three fish species following an experimental (133)Cs addition into a pond in South Carolina, USA. These u and k parameters were compared to similar estimates for fish from other experimental ponds and from lakes that received (137)Cs deposition from Chernobyl. Estimates of u from ponds and lakes declined with increasing potassium concentrations in the water column. Although loss rates were greater in the experimental ponds, the times required to reach maximum Cs concentrations in fish were similar between ponds and lakes, because ponds and lakes had similar retentions of Cs in the water column. The maximum Cs concentrations in fish were largely determined by initial Cs concentrations in the water column. These maximum concentrations in fish and the times required to reach these maxima are potentially useful indicators for assessments of risks to humans from fish consumption.
Authors:
J E Pinder; T G Hinton; F W Whicker; J T Smith
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, U.S. Gov't, Non-P.H.S.     Date:  2009-04-17
Journal Detail:
Title:  Journal of environmental radioactivity     Volume:  100     ISSN:  1879-1700     ISO Abbreviation:  J Environ Radioact     Publication Date:  2009 Jun 
Date Detail:
Created Date:  2009-05-04     Completed Date:  2009-06-23     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8508119     Medline TA:  J Environ Radioact     Country:  England    
Other Details:
Languages:  eng     Pagination:  456-67     Citation Subset:  IM    
Affiliation:
Department of Biology, Texas Christian University, Fort Worth, TX 76129, USA. j.pinder@tcu.edu
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MeSH Terms
Descriptor/Qualifier:
Animals
Cesium / metabolism*
Cesium Radioisotopes / metabolism
Chernobyl Nuclear Accident*
Fishes / metabolism*
Fresh Water / chemistry
Water Pollutants, Chemical / metabolism
Water Pollutants, Radioactive / metabolism
Chemical
Reg. No./Substance:
0/Cesium Radioisotopes; 0/Water Pollutants, Chemical; 0/Water Pollutants, Radioactive; 7440-46-2/Cesium

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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