137 Cs activity concentration in soil of Alagoas State, Brazil

137 Cs activity concentration in soil of Alagoas State, Brazil

Cesium 137 is present in worldwide. To evaluate its deposition in the Brazilian state of Alagoas a total of 41 samples were collected by the Geological Survey of Brazil, then processed and analyzed by gamma-ray spectrometry with hyperpure germanium detectors. The activity concentration varied from (...

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Veröffentlicht in:Applied radiation and isotopes 2021-04, Vol.170, p.109607
Hauptverfasser: de Andrade Filgueiras, Rogério, Dutra Garcêz, Ricardo Washington, Barbosa da Silva, Leandro, Lopes, José Marques, Araujo Ribeiro, Fernando Carlos, Viglio, Eduardo Paim, Xavier da Silva, Ademir
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Sprache:eng
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Zusammenfassung:Cesium 137 is present in worldwide. To evaluate its deposition in the Brazilian state of Alagoas a total of 41 samples were collected by the Geological Survey of Brazil, then processed and analyzed by gamma-ray spectrometry with hyperpure germanium detectors. The activity concentration varied from (0.3 ± 0.1) Bq/kg to (1.1 ± 0.4) Bq/kg. The present study shows that the Borborema Plateau acts as a natural barrier to rainfall, favoring the deposition of Cs on the local soil.
ISSN:1872-9800