Forest contamination by radioactive cesium released by the Fukushima Daiichi nuclear power plant accident that occurred in March 2011 has affected the lives of the residents. In particular, the fallen leaves in forest have been focused as a source of recontamination by a new radioactive cesium to the farmland that has finished decontamination. In this study, with the cooperation of the Fukushima Prefecture Michinoku Adachi agricultural cooperative, the fallen leaves divided into layers close to the surface and the layer close to the surface soil in Nihonmatsu city of Fukushima prefecture were taken in December 2011. The radioactivity of fallen leaves was measured. Further, the radioactivity of (1) the water that washed the leaves, and (2) the water that was filtered after being corrupt at 40 ℃ were measured. As a result, the elution step of radioactive cesium from the fallen leaves to the water became clear. In addition, we also succeeded in treating the radioactive cesium containing water with Prussian blue drilling woven.

原著論文