Measurements of Ambient Radioactivity--Ispra 1961; MISURE DI RADIOATTIVITA' AMBIENTALE--ISPRA 1961

The measurements of environmental radioactivity during 1961 at Ispra are described. Data on the concentration of Sr/sup 90/ and Cs/sup 137/ in fullout, lake waters, and food and the concentrations of I/sup 131/ in milk and thyroids of animals are emphasized. (auth)