Activity levels of gamma-emitters in Argentinean cow milk.

J. DESIMONI, F. SIVES, L. ERRICO, G. MASTRANTONIO Y M. A. TAYLOR.

JOURNAL OF FOOD COMPOSITION AND ANALYSIS

Elsevier

Año: 2008

0889-1575

<!-- /* Font Definitions */ @font-face {font-family:"MS Sans Serif"; panose-1:0 0 0 0 0 0 0 0 0 0; mso-font-charset:0; mso-generic-font-family:swiss; mso-font-format:other; mso-font-pitch:variable; mso-font-signature:3 0 0 0 1 0;} /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {mso-style-parent:""; margin:0pc; margin-bottom:.0001pt; mso-pagination:none; font-size:10.0pt; font-family:"MS Sans Serif"; mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:"Times New Roman"; mso-ansi-language:ES-TRAD; layout-grid-mode:line;} @page Section1 {size:51.0pc 66.0pc; margin:6.0pc 7.5pc 6.0pc 7.5pc; mso-header-margin:3.0pc; mso-footer-margin:3.0pc; mso-paper-source:0;} div.Section1 {page:Section1;} --> doi:10.1016/j.jfca.2008.10.0242008With the aim of contributing to the establishment of baselines for natural and man-maderadioisotopes, the concentration of gamma-emitter radionuclides was determined in a set ofcommercial and dairy farm liquid cow milks produced in the most important productionregions of Argentina using a gamma-ray spectrometer with a high-resolution HPGe detector.For comparison, samples from Chile and Uruguay were also analyzed. The main detectedactivity corresponded to 40K, while the activities of elements of the natural chains were belowthe detection limit. The determined 40K average activity for the Argentinean milks was 60 Bq/L. Traces of the anthropogenic radionuclide 137Cs were observed only in the Chilean milksample.