i don't understand why radioactive waste is stored underground
is it because it is a harmful substance
http://www.jiskha.com/display.cgi?id=1207837398.1207837861
My thoughts were posted at your original post.
Yes, radioactive waste is stored underground because it is a harmful substance. Radioactive waste contains radioactive materials that emit ionizing radiation, which can be harmful to living organisms and the environment. There are several reasons why underground storage is preferred for radioactive waste:
1. Containment: Underground storage provides a barrier to prevent the release of radioactive materials into the environment. The soil surrounding the storage facility acts as a natural barrier that reduces the risk of radioactive contamination.
2. Shielding: The Earth's crust provides a natural shield against radiation. By storing radioactive waste deep underground, layers of rock and soil act as additional shielding, reducing the exposure to radiation.
3. Stability: Underground storage offers stability and protection against natural disasters such as earthquakes, floods, and extreme weather events. Deep geological formations are chosen to ensure long-term stability and minimize the risk of accidental release.
4. Longevity: Radioactive waste remains hazardous for thousands of years, and underground storage provides a long-term solution to isolate it from the biosphere. This approach allows for the gradual decay of radioisotopes over time, reducing the risk of exposure to future generations.
To implement underground storage, comprehensive research and geological studies are conducted to identify suitable sites that meet specific criteria, such as geology, hydrology, and proximity to populated areas. Careful engineering and design of storage facilities ensure the safe containment of radioactive waste for an extended period.