Radioactive materials are found naturally in the Earth. But even so, saying an area is radioactive can conjure up images of ...

It comes from the natural decay of uranium, a radioactive element that is found in nearly all soils. Studies show radon exposure is the second leading cause of lung cancer in the US after smoking ...

The Hanford nuclear site in Washington state — one of the largest and most contaminated storehouses of radioactive waste in the US — is currently undergoing an emergency. The US Department of ...

sign up for our weekly updates containing our most important news, multimedia and more. The purpose of this publication is to compile and disseminate information about the status of and trends in ...