Radiation Protection Science and Tools

EPA develops technical reports to help standardize methods for dose and risk assessment. These reports, along with Federal Guidance, are used by federal and state agencies in developing radiation protection regulations and standards. Explore some of the basics of radiation, discover useful science-based tools, and learn about Technologically Enhanced Naturally Occurring Radioactive Material (TENORM).

Radiation Basics

Learn about radiation basics, including terms and units, sources, doses, and health effects.

Tools for Calculating Radiation Dose and Risk

EPA bases its radiation protection activities on scientific assessment of health risks posed by radioactive substances. EPA's science-based tools help radiation protection professionals calculate radiation dose and risk.

Everyone can use the Radiation Dose Calculator to estimate your yearly dose from the most significant sources of ionizing radiation.

Technologically Enhanced Naturally Occurring Radioactive Material (TENORM)

Learn about Technologically Enhanced Naturally Occurring Radioactive Material (TENORM) and EPA’s role in understanding the problems associated with TENORM.

Radiation Science

Find out about some of the radiation science from EPA experts.

• Rapid Radiochemical Methods for Selected Radionuclides
• Stabilization/Solidification Processes for Mixed Waste
• Relative Biological Effectiveness of Low-Energy Electrons and Photons
• Perspective on the use of LNT for Radiation Protection and Risk Assessment by the U.S. Environmental Protection Agency