Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Click on different parts of the image below, or on one of the links below the image, to explore laboratories, consumer products, air travel and emergency response activities to learn about radiation sources you may encounter in your everyday life.
