Abstract

The aim of this research was to study the behaviour of 137Cs in fruit-bearing plants following the Chernobyl accident. Samples of hazel-nuts were collected over a period of three years after the accident. The 137Cs content of the fruit shows an exponential decrease with time. Evaluation of the 134Cs/ 137Cs ratios in samples of atmospheric particulates, soils and fruit suggests that foliar translocation is the main pathway for 137Cs migration to the fruit. In addition, estimates of the effective half-times of 137Cs in hazel-nuts, walnuts, olives and apples and of the ‘translocation factors‘ for hazel-nuts, walnuts, olives, apples and chestnuts have been made.

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