Influence Of Effective Microorganisms On The Activity Of Cs-137 In The Soil Contaminated Due To The Accident On The Chernobyl Npp

Microbiological soil improvers have a potential as a tool for regulation transfer of induced radioisotopes and other pollutants into crops. During the development of a method using effective microorganisms (EM) to reduce the soil-to-plant transfer of Cs-137 on land contaminated with radioactive cesium, an unexpected effect of EM on the reduction of the Cs-137 activity in soil samples was observed. Laboratory experiments were then conducted to evaluate the impact of EM and fermented organic fertilizer (EM Bokashi) on the Cs-137 activity in soil samples to investigate this observation. The experimental results indicate an increase in the Cs-137 decay rate of up to 4 times the usual decay rate corresponding to the half-life of Cs-137, which is 30.17 years. Our results suggest that EM accelerates the radioactive decay of Cs-137 in soil. (C) 2019 ISCMNS. All rights reserved.