Strontium-90 What Is Strontium-90? Strontium is a naturally occurring metallic element found in rocks, soil, coal, and dust. However, Strontium-90  is a radioactive isotope produced during nuclear fission in reactors and weapons testing. With a half-life of approximately 29 years, it persists in the environment for decades, allowing it to circulate through ecosystems, food chains, and human populations long after initial release. Because it behaves chemically similar to calci

Uranium-235 💡 Exploring Uranium‑235: Understanding Its Impact and Presence in Our Environment Uranium‑235 is a naturally occurring radioactive element that has played a major role in scientific advancement, energy production, and global history. While it exists in nature at very low levels, human activity has dramatically altered how concentrated and widespread this isotope has become. Understanding what uranium‑235 is, how it behaves in the environment, and how exposure can