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.