Simultaneous analysis of 137Cs, 90Sr, 238Pu and 239+240Pu in Brazilian seawater |
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| Authors: | R. C. L. Figueira E. S. B. G. Saraiva I. I. L. Cunha |
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| Affiliation: | (1) Universidade Cruzeiro do Sul – UNICSUL, São Paulo, Brazil;(2) Oceanographic Institute – IO-USP, São Paulo, Brazil;(3) Radiochemistry Division – Instituto de Pesquisas Energéticas e Nucleares, Caixa Postal 11 049, Pinheiros, CEP-05422-970 São Paulo, Brazil |
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| Abstract: | Methodologies for simultaneous analysis of 137Cs, 90Sr, 238Pu and 239+240Pu were developed and applied to seawater samples. 137Cs levels in Brazilian coastal seawater ranged from 0.12 to 4.7 Bq·m-3, for 90Sr from 2.0 to 8.6 Bq·m-3, for 239+240Pu from 0.8 to 4.5 mBq·m-3 and for 238Pu it was of 1.9 mBq·m-3. The artificial radioactivity levels in Brazilian seawater are typical values due to fallout deposition. |
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