So, here are the most radioactive ... of plutonium for the US’s nuclear weapon stockpile. Established in 1943, it was used during the Cold War and was one of the United States’ main facilities ...

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 ...

The radioactive lake, located in the southern ... and is known as “the most polluted spot on Earth.” Constructed in the 1940s, Mayak was one of Russia’s most prominent nuclear facilities ...

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