Radiocesium Particles in Cherry Tree Bark in Fukushima Prefecture After TEPCO's Fukushima-Daiichi Nuclear Power Plant

Abstract

 The current ¹³⁷Cs pollution on cherry tree barks of Northern Fukushima Prefecture was studied nine-ten years after the accident at TEPCO's Fukushima-Daiichi Nuclear Power Plant. The radiocesium-containing hexahedron particles of size 2 μm were found in 2020 in the strong spots of the cherry tree bark that were collected in Fukushima in 2015. The ¹³⁷Cs pollution in the cherry tree bark of Northern Fukushima Prefecture decreases each year and the expected radioactive particles are cesium salt.