Document Detail


Uptake and depuration of 131I by the edible periwinkle Littorina littorea: uptake from labelled seaweed (Chondrus crispus).
MedLine Citation:
PMID:  15725502     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Uptake and depuration experiments of (131)I from labelled seaweed (Chondrus crispus) by the edible periwinkle Littorina littorea have been performed. Radioiodine concentrations in winkles during uptake followed first-order kinetics with an uptake half-time of 1 day, and a calculated equilibrium concentration (C(infinity)) of 21 000 Bq kg(-1) resulting in a transfer factor of 0.07 with respect to the labelled seaweed used as food. For depuration, a biphasic sequence with biological half-lives of 1 and 24 days was determined. The results suggest that in general, iodine turnover in periwinkles is slower than observed for other molluscs (monophasic biological half-lives in the order of 2-3 days). Both environmental media, food and seawater, can be significant sources of radioiodine for the winkle.
Authors:
R C Wilson; J Vives i Batlle; P McDonald; T G Parker
Publication Detail:
Type:  Journal Article     Date:  2004-12-08
Journal Detail:
Title:  Journal of environmental radioactivity     Volume:  80     ISSN:  0265-931X     ISO Abbreviation:  J Environ Radioact     Publication Date:  2005  
Date Detail:
Created Date:  2005-02-23     Completed Date:  2005-06-28     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8508119     Medline TA:  J Environ Radioact     Country:  England    
Other Details:
Languages:  eng     Pagination:  259-71     Citation Subset:  IM    
Affiliation:
Westlakes Research Institute, The Princess Royal Building, Westlakes Science and Technology Park, Moor Row, Cumbria CA24 3LN, UK.
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MeSH Terms
Descriptor/Qualifier:
Animals
Diet
Food Chain
Half-Life
Iodine Radioisotopes / pharmacokinetics
Seaweed / chemistry*
Snails / physiology*
Tissue Distribution
Water Pollutants, Radioactive / pharmacokinetics*
Chemical
Reg. No./Substance:
0/Iodine Radioisotopes; 0/Water Pollutants, Radioactive

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


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