Early radioactive fallout in Israel following the 1961 nuclear weapon tests

Daily samples of airborne and deposited radioactivity were collected in Israel during the months following the 1961 nuclear weapon tests. The age and composition of the fallout was determined by radiochemical end decay analysis. Meteorological analysis of the data shows that except for one cam of direct cross-European transport, the favoured path of arrival of the early redioactive fallout into the Levant was by a circumpolar route in the upper troposphere. From December 1961 onwards there is evidenoe for increasing stratospheric contribution to the collected radioactivity.