Decontamination is a process to reduce or remove unwanted material, such as radioactive, toxic chemical or biological substances. Decontamination from the surface of an object or from an area applies to removal by washing, biological agents, chemical action, mechanical cleaning, or other techniques.

(EDTA) Ethyl diamine tetra acetic acid is used in decontamination applications as well as for the kidney clearance in connection with 99mTc to assign the glomerular kidney filtration.