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Tritium concentration analysis of groundwater samples from the environmental monitoring program at IPEN, São Paulo, Brazil

Published online by Cambridge University Press:  17 June 2005

J.C. Barescut ,
J.C. Gariel ,
J.M. Péres ,
L. Leonardo  and
B. R.S. Pecequilo
L. Leonardo
Affiliation:
Environmental Radiometric Division, Instituto de Pesquisas Energéticas e Nucleares, Av. Prof. Lineu Prestes, 2242 Cidade Universitária, 05508-000, São Paulo, SP, Brazil e-mail: brigitte@ipen.br
B. R.S. Pecequilo
Affiliation:
Environmental Radiometric Division, Instituto de Pesquisas Energéticas e Nucleares, Av. Prof. Lineu Prestes, 2242 Cidade Universitária, 05508-000, São Paulo, SP, Brazil e-mail: brigitte@ipen.br
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Abstract

Tritium concentrations of groundwater samples from the Environmental Monitoring Program at IPEN (Institute of Nuclear and Energetic Researches), São Paulo, Brazil, covering the years 2000 to 2003, were determined by liquid scintillation counting and the results laid in the range of 20 Bq$\cdot$L-1 to 91 Bq$\cdot$L-1. The effective committed dose for general public considering the highest concentration value is 1.3 μSv$\cdot$y-1, which is below the ICRP dose limit of 1mSv$\cdot$y-1. Tritium concentration of radioactive liquid effluents samples from the IEA-R1 research reactor storage tank showed values from 3.6×103 Bq$\cdot$L-1 to 6.2×103 Bq$\cdot$L-1, approximately 1000 times below the Brazilian daily discharge limit of 3.7×106 Bq$\cdot$L-1.

Type
Research Article
Information
Radioprotection , Volume 40 , Issue S1 , May 2005 , pp. S779 - S784
Copyright
© EDP Sciences, 2005

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