Анотація:
The content of ¹³⁷Cs and the ratio Sr/Ca in the plants grown at three experimental sites under natural conditions at the Chornobyl Exclusion Zone are investigated. We carried out the investigations for two seasons. We found for all the investigated species and for every experimental site that the content of ¹³⁷Cs in plants varied by several dozens of times during our experiment, and the ratio Sr/Ca oscillated not more than by 30%.