Dose estimate for reuse of disaster wastes contaminated by radioactive material

Takai, Shizuka 

Disaster wastes contaminated by the Fukushima Daiichi nuclear disaster are desired to reuse positively to reduce their amount and to utilize effectively. The part of materials contaminated in the living environment has been reused for various uses. In this research, we analyzed the dose for worker and public when contaminated concrete is reused as road construction materials, and we estimated the condition which contaminated disaster wastes can be reused in. As a result, if we set the shielding materials under 30 cm from the ground, contaminated concrete up to 2700 Bq/kg can be reused as the road construction materials. This result is used for the guide for reuse of disaster wastes in ministry of the environment. We also analyzed the dose for public considering the investigation in ministry of the environment on the present use of reused products, and we checked the safety for the investigated use of reused product.