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… special packaging requirements for larger concentrations of radioactivity. For transportation purposes, radioactive … plants, special care is taken to prevent any release of radioactivity to the environment even under the worst … the outside of the cask is cleaned and then measured for radioactivity. Third, the cask is loaded onto the truck or …

Radioactive Symbol on Transportation Packages … For transportation purposes, radioactive material is defined as any material which has a specific activity greater than 0.002 microcuries per gram. This definition does not specify a quantity, only a …

Radioactive Material Security … The U.S. Nuclear Regulatory Commission and Agreement States regulate the use of radioactive material in order to protect people and the environment. Material licensees have the primary responsibility to maintain the …

… and cesium-137 have half-lives of about 30 years (half the radioactivity will decay in 30 years). Plutonium-239 has a … radioactive wastes. The standards limit the amount of radioactivity entering the biosphere outside the boundaries … syringes, and laboratory animal carcasses and tissues. The radioactivity can range from just above background levels …

Regulation of Radioactive Materials … Because of their potentially hazardous properties, the use of certain radioactive materials must be closely regulated to protect the health and safety of the public and the environment. Toward that end, the …

Backgrounder on Medical Use of Radioactive Materials … Printable Version Radioactive materials can be helpful to diagnose and treat illnesses or in medical research. The Nuclear Regulatory Commission regulates these uses. NRC rules aim to ensure …

Low-level radioactive waste (LLW) … A general term for a wide range of waste that is contaminated with radioactive material or has become radioactive through exposure to neutron radiation. A variety of industries, hospitals and medical institutions, …

Orphan sources (unwanted radioactive material) … Sealed sources of radioactive material contained in a small volume (but not radioactively contaminated soils and bulk metals) in any one or more of the following conditions: An uncontrolled condition that …

High-level radioactive waste (HLW) … The highly radioactive materials produced as byproducts of fuel reprocessing or of the reactions that occur inside nuclear reactors . HLW includes: Irradiated spent nuclear fuel discharged from commercial nuclear power …

Radioactive Waste Handling … … Radioactive Waste Handling …