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Dayton III
Dayton IV
DaytonWarehouse Guterl
Harshaw
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Luckey
Painesville
NFSS
Seaway
SLDA
Ton. Landfill

Formerly Utilized Sites Remedial Action Program

Environmental Glossary: U - X

A B C D E F G H I L M N O P R S T U V W X

U

uranium

The heaviest element found in nature. Approximately 997 out of every 1000 uranium atoms are uranium-238. The remaining 3 atoms are the fissile uranium-235. The uranium-235 atom splits, or fissions, into lighter elements when its nucleus is struck by a neutron. One of four primary radionuclides in FUSRAP wastes, including radium-226, radon-222 and thorium-230.

USEPA

United States Environmental Protection Agency (sometimes called EPA).

UST

Underground Storage Tank, any underground storage tank or associated piping containing hazardous materials.

V

vitrification

A method of immobilizing waste that produces a glass-like solid that permanently captures the radioactive materials.

VOCs

Volatile Organic Compounds, chemicals that contain carbon and commonly also contain hydrogen, oxygen and other elements. The prefix "volatile" means that the compound evaporates rapidly. Most industrial solvents are volatile. Found in some liquid and air waste releases.

W

waste minimization

Employing new techniques to reduce the amount of hazardous and radioactive wastes generated to as low a level as possible.

WIPP

Waste Isolation Pilot Project, a planned disposal facility in New Mexico for transuranic and other radioactive wastes.

X

x-rays

Electromagnetic radiations used in medical diagnosis; a penetrating electromagnetic radiation, usually generated by accelerating atoms to high velocity and suddenly stopping them by collision with a solid body.

A B C D E F G H I L M N O P R S T U V W X

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