It’s widely known that a smoke detector is a good ionizing radiation source, as they contain a small amount of americium-241, a side product ... small amounts of plutonium-239, uranium-237 ...

A wildlife corridor plans to connect two Superfund sites at the former Rocky Flats plutonium plant and the Rocky Mountain ...

One person familiar with the discussions said: “If this plutonium is put beyond use, we’ll be throwing away 140 tonnes of future nuclear fuel. “That’s simply economic vandalism. It’s a ...