An official website of the United States government.



RadTown is the EPA’s radiation education website. The four areas below contain fact sheets that explain different types, sources, and uses of radioactive material or radiation. Each of the location-based categories below will lead you to in-depth fact sheets, like our Non-Ionizing Radiation Used in Microwave Ovens fact sheet. In addition, the terms listed on our A to Z Index  will also take you to fact sheets about those topics.

Women in Radiation History

Image of Lee Veal, Lise Meitner, Chien-Shiung Wu, Rosalind Franklin

Woman scientists have made important contributions to our understanding of radiation and its uses. Their achievements were not often recognized in their lifetimes, and their stories are not widely known. Our Women in Radiation History webpage presents slideshows and timelines about the lives of three women who advanced the cause of science. You can also see a video presentation from a woman working in science today—Ms. Lee Veal, Director of EPA’s Radiation Protection Division. Visit Women in Radiation History.

Spotlight on...

This is a picture of a dalmatian dog, who lives at the Emergency Response Building in the Downtown section of RadTown. Visit the Downtown section to learn more!RadTown has an exciting new look! All of the great content you know and love is still contained on this site. Learn something new with one of our fact sheets.

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This is an image of the three actions to take during a radiological emergency.