Radiochemical characterization of algae products commercialized for human consumption. Health Physics, 111/3, 2016.

DESIDERI, DONATELLA
Cantaluppi, Chiara
Ceccotto, Federica
MELI, MARIA ASSUNTA
ROSELLI, CARLA
FEDUZI, LAURA

Publication date

January 2016

DOI

Abstract

Natural radionuclides and Cs-137 were determined by alpha (U-238, U-234, Th-230, Po-210, Th-232, and Th-228) and gamma spectrometry (Cs-137, K-40, Ra-226, Pb-210, and Ra-228 via Ac-228) in 14 dried seaweeds commercialized for human nutrition in Italy. The study was carried out in order to provide information on the concentrations of natural and artificial radionuclides. Cesium-137 (Cs-137) concentrations in all analyzed samples were always <2.0 Bq kg(-1) (dry weight), while the naturally occurring radionuclide concentrations were detectable in all the samples and significantly different in the analyzed seaweeds. Potassium-40 (K-40) showed a mean activity of 894 Bq kg(-1) with a range of 14.1-3,256 Bq kg(-1). The mean of activity for Po-210 ...