Intercomparison Study IAEA/SL-2 on the Determination of Environmental Levels of Radioactivity in Lake Sediment

摘要

The results of the intercomparison on lake sediment (IAEA/SL-2) for the determination of environmental levels of radioactivity are reported. The data from twenty-one laboratories from fifteen countries have been considered and include the determination of the radionuclides /sup 40/K, /sup 90/Sr, /sup 137/Cs, /sup 210/Pb, /sup 226/Ra, /sup 228/Ra, /sup 228/Th, /sup 234/Th, /sup 238/U and /sup 239/240/Pu. According to a rigorous statistical evaluation sufficient data for recommended mean values and confidence intervals only have been received for /sup 40/K and /sup 137/Cs. Figs and tabs. (Atomindex citation 18:075685)