DU Fundamentals

DU Training at JPG

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What is DU?

Depleted uranium (DU) is uranium that is 40 percent less radioactive than natural uranium, while retaining identical chemical properties to natural uranium. DU results from the enrichment of natural uranium which is used in nuclear reactors.

Why is it used?

In military applications, when alloyed, DU is ideal for use in armor penetrators. These solid projectiles have a performance advantage over competing materials.

What are the health effects of DU?

The health effects of DU depend on the route and magnitude of exposure (ingestion, inhalation, contact, or in wounds) and characteristics of DU (particle size and distribution). The major health concerns about DU relate to its chemical properties as a heavy metal rather than its radioactivity, which is low.

Where can I get more information on DU?

See Radiation Fundamentals (PPT, 670k) or the following external web sites (which open to a new browser window).

1. WHO, Depleted Uranium Fact Sheet 257, January 2001
2. U.S. Info, Depleted Uranium Fact Sheet
3. Jefferson Laboratory, Radiological Fundamentals
4. Jefferson Lab, Radiological Worker Training Guide
5. DOD, Office of the Special Assistant for Gulf War Illnesses, Depleted Uranium Information
6. OSHA, Ionizing Radiation
7. Uniformed Services University, Depleted Uranium: Science, Policy, and Training
8. Uranium Information Centre, Uranium and Depleted Uranium, March 2001
9. Federation of American Scientists, Depleted Uranium
10. United Nations Environment Programme, Plutonium Found in Depleted Uranium Ammunition, February 2001

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