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.
The following fact sheets explain where radioactive material may be concentrated because of manufacturing or mineral extraction. Some of these things will be found in other places you visit in your day-to-day life.
