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Science Inventory - United States Environmental Protection ...

Dec 22, 2005· U.S. Environmental Protection Agency, Washington, D.C., EPA/600/J-87/096 (NTIS PB88139977), 1987. Description: Because there appears to be on unequivocal reports of uranium-induced radiation effects in humans, it is necessary to rely on experimental work with animals and on epidemiological investigations of human populations exposed to radium ...

Radiation Protection | US EPA

EPA sets limits on environmental radiation from use of radioactive elements. The Radiation Protection website describes EPA's radiation protection activities, regulations and supporting information.

Uranium Mill Tailings Radiation Control Act - Wikipedia

The Uranium Mill Tailings Radiation Control Act (1978) is a United States environmental law that amended the Atomic Energy Act of 1954 and authorized the Environmental Protection Agency to establish health and environmental standards for the stabilization, restoration, and disposal of uranium mill waste.Title 1 of the Act required the EPA to set environmental protection standards consistent ...

Uranium | Health & Environmental Research Online (HERO ...

U.S. Department of Energy has established a program to inventory and perform environmental screening on defense-related uranium mine sites. The focus of this paper is the approximately 2,400 defense-related uranium mine sites located on federal land managed by the Bureau of Land Management and the U.S. Forest Service.

Integrated Uranium Resource and Environmental Assessment

The US Geological Survey has assembled a small group of scientists who are assessing the uranium resource potential of the United States. Uranium is used to fuel the 98 operable nuclear reactors in the United States, providing 20% of the nation's electricity.

EPA Facts about Uranium - US Environmental Protection …

Uranium is not a stable element. As uranium decays, it releases radiation and forms decay products. Uranium-238 decay products include uranium-234, radium-226, and radon-222. See "EPA Facts about Radon and Radium" for additional information on these radionuclides. Natural uranium releases alpha particles and low levels of gamma rays.

Radiation Protection Document Library - US EPA

This document describes EPA's role in radiation protection of the environment and the public and its Radiation Protection Program. 402-F-01-021: EPA's Role in Radiation Protection: Radiation: Facts, Risks, and Realities: Radioactive Waste Disposal: An Environmental Perspective (PDF) (16 pp, 2 , 1994, 402-K-94-001) radiation

Addressing Uranium Contamination on the Navajo ... - US EPA

Although the legacy of uranium mining is widespread and will take many years to address completely, the collaborative effort of US EPA, other federal agencies and the Navajo Nation will bring an unprecedented level of support and protection for the people at risk from these sites.

USNRC Uranium Recovery Oversight Program

Nuclear Regulatory Commission,Uranium Recovery facility licensing phases,Radiation Protection Regulations 10 CFR Part 20,dose limits,radiation workers,radioactive materials,radiation exposure,dosimeters,health physics,radiation safety,in-situ recovery facility,conventional and heap leach facility,ISR,Lost Creek,Nichols Ranch,Moore Ranch,uranium ...

Uranium | Health & Environmental Research Online ... - US EPA

External gamma dose rate in the air due to uranium, thorium, and potassium at 1 m above ground level in the area affected by uranium mining was found to be 91.3 nGy h(-1), i.e., about two-fold higher than that in background area.


EPA's Radiation Protection Division works to address hazards posed by technologically enhanced naturally occurring radioactive materials (TENORM). As one part of EPA's efforts to characterize risk from TENORM sources and to identify where TENORM problems exist, we have been investigating the potential environmental hazards of abandoned uranium mines in the western United States.

Radioactive Decay | Radiation Protection | US EPA

Radioactive decay is the emission of energy in the form of ionizing radiation ionizing radiationRadiation with so much energy it can knock electrons out of atoms. Ionizing radiation can affect the atoms in living things, so it poses a health risk by damaging tissue and DNA in genes..

Navajo Nation: Cleaning Up Abandoned Uranium Mines | US EPA

From 1944 to 1986, nearly 30 million tons of uranium ore were extracted from Navajo lands under leases with the Navajo Nation. This website describes how five federal agencies are working together to reduce the highest risks to Navajo people from uranium contamination resulting from the abandoned mines.

RadTown USA Uranium Mines - EPA

There are radiation protection standards in place specifically to protect uranium mine workers. Radiation and Mining Uranium mining releases radon from the ground into the atmosphere. Open-pit and in-situ mining sites have been monitored by federal …

TENORM: Uranium Mining Wastes | Radiation Protection | US EPA

Nov 02, 2016· The modern uranium mining industry began in the 1940s primarily to produce uranium for weapons and later for nuclear fuel. EPA's Uranium Location Database, with information provided by other federal, state, and tribal agencies, includes 15,000 mine locations with known or potential uranium occurrence in 14 western states.

Uranium Location Database Compilation | Radiation ... - US EPA

Sep 16, 2015· Uranium Location Database Compilation (PDF) (26 pp, 478 K, August 2006, 402-R-05-009) Contact Us to ask a question, provide feedback, or report a problem. Radiation Protection

US EPA - United States Environmental Protection Agency

US EPA. United States Environmental Protection Agency. Search Search. Main menu. ... Radiation Protection Program - Radiation Glossary Description: ... The tailings or wastes produced by the extraction or concentration of uranium or thorium from any ore processed primarily for its source material content. Absorbed Dose:

Uranium mining and the Navajo people - Wikipedia

The Uranium Mill Tailings Radiation Control Act (1978) is a United States environmental law that amended the Atomic Energy Act of 1954 and authorized the Environmental Protection Agency to establish health and environmental standards for the stabilization, restoration, and disposal of uranium …

Uranium (U) and Gross Alpha Radiation

Uranium-238 is the most common form. Over 99 percent of the uranium found in nature is uranium-238. Uranium is not stable but breaks down into other elements including radium and radon. This process is called decay, and alpha radiation is released. Both radium and radon are also unstable, and decay to other elements, releasing additional radiation.

System of Registries | US EPA

The Substance Registry Services (SRS) is EPA's authoritative resource for information about chemicals, biological organisms, and other substances tracked or regulated by EPA. Learn more about SRS Find chemicals or substances

US EPA - United States Environmental Protection Agency

To search, select a Criteria Type and a Criteria. For searches using Criteria Types: Classification, Characteristic, or Reason for Regulation, select the Criteria from the drop down box.

Common Industrial Uses of Radioactive Sources | Radiation ...

In the United States, millions of radioactive sources are in use by tens of thousands of authorized users (licensees). The amount of radioactive material authorized for these licenses ranges from one-millionth of a curie, which is typical for the sources used in gauges, to millions of …

US EPA - United States Environmental Protection Agency

Uranium: Definition: A radioactive (unstable) element generally found in the environment. As uranium decays, it releases radiation and forms other elements (like radium and radon) until it becomes a stable element. Uranium milling: Definition: The process that removes uranium from the ore. The ore is crushed and ground up, treated with chemical ...

Radiation Protection Program -

Bloomsburg, which is a joint EPA and DEP endeavor. This site is located on the Susquehanna River, with a significant fraction in the flood plain. The Radiation Protection Program ensures radioactive materials licensees comply with federal regulatory limits for radionuclides by incorporating NRC regulation by reference in 25 Pa. Code Article V.

Radionuclide Basics: Uranium | Radiation Protection | US EPA

Radionuclide Basics: Uranium | Radiation Protection | US EPA

Radiation Regulations, Standards, and Guidance - EPA

----- Uranium and Thorium Mill Tailings Health and Environmental Standards for Uranium and Thorium Mill Tailings (40 CFR 192) - EPA issued health and environmental standards to govern stabilization, control, and cleanup of residual radioactive materials at both operational and inactive uranium and thorium processing sites.

Radiation Protection Document Library - US EPA

683 · This document describes EPA's role in radiation protection of the environment and the …

Uranium | EPA

Uranium mining in South Australia is carried out by conventional underground mining and in-situ recovery (ISR), also known as in-situ leaching (ISL) techniques. The following operations are licensed under the Radiation Protection and Control Act 1982 to mine or mill radioactive ores.

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