ANTHROPOGENIC RADIONUCLIDES IN SURFACE SEA WATER AND FALLOUT

摘要

A summary of the measurements of the concentrations of man-made radionuclides in surface seawater as well as fallout since early 60's are here reported as measured in Italy and Japan. Most of the data refers to~(90)Sr and~( l37)Cs, but occasionally the concentrations of~(89)Sr and~(34)Cs in some Italian samples are also given. The fallout produced by the experimental nuclear weapon tests is the main source of radionuclides. The release of the Chernobyl accident contributed also to a worldwide deposition in the Northern Hemisphere with large differences according to the distance from the source, the location and the meteorological condition at the time of the deposition.