(i) Low Level Wastes (LLW): Generated in hospitals, industries from short lived radioactive materials like plastic, cosmic radiations, etc.
(ii) Intermediate Level Waste (ILW): Include contaminated materials from nuclear reactor decommissioning and chemical sludge.
(iii) High Level Waste: Generated in nuclear fissions which contain fission products, transuranic elements which take long time to decay.
(iv) Transuranic waste: It is generated from nuclear weapons.