Peculiarities of absorption of radionuclides by annual and perennial plants from contaminated soils

The phytoremediation properties of some annuals and perennials in soil contaminated with Cs 137 are compared. It is shown that some perennials, such as Spiraea japonica and Fern, no longer absorb Cs 137 after some critical value of soil contamination is reached. Chenopodium (annual plant) withstands high levels of soil contamination with Cs 137 before withering. Only before the end of the life cycle does it lose its ability to resist and Cs 137 is being absorbed.

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