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artículo con referato
"137Cs Contamination in Tea and Yerba Mate in South America"
D.E. Di Gregorio, H. Huck, R. Aristegui, G. De Lazzari and A. Jech
J. Environ. Radioactiv. 76(3) (2004) 273-281
Gamma-ray spectra from more than fifty samples of food products available in stores of Buenos Aires city were measured using a germanium detector. We found concentrations of 137Cs up to 10 Bq/kg in tea manufactured in Apóstoles, Misiones-Argentina. Further measurements of tea leaves, yerba mate leaves and soils, all coming from a cultivated area in this region, also show the presence of 137Cs contamination. Our data support the idea that the area was fertilized with a product originated in a region of the Earth where the consequences of the global fallout due to nuclear weapons tests and/or the Chernobyl nuclear plant accident were important.
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