Radioactivity Size Distributions of Ambient Aerosols in Helsinki, Finland During May 1986 after Chernobyl Accident. Discussions of Accident Scenario. Preliminary Report

摘要

Ambient aerosol size distributions of (131) I, (103) Ru, (132) Te and (137) Cs radionuclides were measured in Helsinki, Finland during May 7-14, 1986. Radioactivity size distributions were unimodal. Geometric mean diameter of sup 131 I was in the size range 0.33 - 0.57 mu m a.e.d. Other isotopes had geometric mean diameters in the size range 0.65 - 0.93 mu m a.e.d. (ERA citation 12:009217)