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210Po in mussels and shrimp from Ilha Grande Bay, Rio de Janeiro, Brazil

Published online by Cambridge University Press:  09 January 2012

J. Barescut ,
D. Lariviere ,
T. Stocki ,
I. Moreira ,
Z. Carvalho  and
J.M. Godoy
I. Moreira
Affiliation:
Pontificia Universidade Católica do Rio de Janeiro, 22453-900 Rio de Janeiro, Brazil
Z. Carvalho
Affiliation:
Instituto de Radioproteção e Dosimetria, CNEN, 22780-970 Rio de Janeiro, Brazil
J.M. Godoy
Affiliation:
Pontificia Universidade Católica do Rio de Janeiro, 22453-900 Rio de Janeiro, Brazil Instituto de Radioproteção e Dosimetria, CNEN, 22780-970 Rio de Janeiro, Brazil
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Abstract

Perna pernamussels and shrimp, Xiphopenaeus kroyeri,collected in August 2010 at Ilha Grande Bay, a tropical estuary in the state of Rio de Janeiro coast, were analyzed for 210Po contents. The method for the determination of 210Po consisted of spontaneous deposition on copper discs, followed by alpha counting. The average values found for the activity concentration of 210Po in Perna pernamussels were 105.1 Bq kg−1 (8 cm size) and 98.4 Bq kg−1 (4 cm size), wet basis. For the shrimp, the values varied from 26.17 Bq kg−1 to 29.56 Bq kg−1 (wet basis) for the tail muscle, and from 274.49 Bq kg−1 to 428.82 Bq kg−1 (wet basis) for the head.

Type
Research Article
Information
Radioprotection , Volume 46 , Issue 6: ICRER 2011 – International Conference on Radioecology & Environmental Radioactivity: Environment & Nuclear Renaissance , 2011 , pp. S97 - S100
Copyright
© Owned by the authors, published by EDP Sciences, 2011

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