Radioactive Waste Disposal —Uranium as Natural Radioactive Substances in Waste Disposal—

Abstract

Radioactive waste disposal scheme was reviewed in terms of practice in waste disposal with regards to the naturally occurring radioactive materials, which exist in our natural environment. Moreover, the De Minimis concepts once we shared with as trivial activities in 1980’s, which discussed in international community to be a concept of exemption and later of clearance. Finally, the legislation in foreign countries in waste disposal, exemption, clearance was reviewed in comparison to the nature of uranium and other naturally occurring radioactive materials in environment.