Some problems about very low level radioactive waste disposal

Very low level waste(VLLW) is a new type of radioactive wastes proposed recently.No widely acceptable definition and disposal rules have been established for it.This paper makes a review of many problems about VLLW,which include regional crust stability,geology,hydrogeology,geochemistry,geological hazard and safety assessment.The future development of VLLW disposal research in China is also predicted in this paper.