Environmental radioactivity

Environmental radioactivity refers to the presence and concentration of radioactive materials in the environment, including air, water, soil, and living organisms. This radioactivity is a natural phenomenon resulting from the decay of radioactive isotopes that are found in the earth's crust, cosmic radiation from outer space, and human-made sources. **Sources of Environmental Radioactivity:** 1. **Natural Sources:** - **Cosmic Rays:** High-energy particles from outer space that contribute to background radiation.