Assessment of radioactivity in commercially available honey in Italy

Abstract Activity concentration of natural radionuclides and 137Cs were estimated in 28 honeys purchased from large supermarket chains in Italy. Uranium, polonium and thorium were measured by alpha spectrometry, 40K and 137Cs by gamma spectrometry and 226Ra by liquid scintillation. The concentrations were 50.6±46.3, 0.023±0.010, 0.019±0.017, 0.27±0.40 Bqkg-1 for 40K, 238U, 234U and 210Po respectively. 235U, 228Th, 232Th were consistently