User:Mr Pigeon/sandbox

Info is meant for Radioactive waste

High-Level Waste
High-level radioactive waste consists of spent fuel rods that are hot and very radioactive, usually consisting of elements such as cesium-137 and strontium-90. The half-lives of radioactive wastes vary quite extremely. The half-lives of elements such as cesium-137 and strontium-90 is usually around 30 years, while elements such as plutonium may span as long as 24,000 years.

Mill Tailings
Mill tailings are not very radioactive, but have long half-lives. They are produced by milling specified ores in order to extract materials such as uranium and thorium. Tailings often contain radium, thorium and trace amounts of uranium.