Page 41 - Curriculum Visions Dynamic Book

corrosion: the slow decay of a substance resulting from contact with gases and liquids in the environment.
Low level waste
Some waste is not very radioactive. This includes the waste rock from uranium mines and the discarded clothing from scientists working with radioactive materials, radiologists in hospitals, etc. This material is normally buried in special dumps. A covering of soil is sufficient to act as a shield.
 Decommissioning nuclear reactors is a very difficult process because the amount of high level waste is large. In many cases the reactor core will be left where it is and buried in an immense slab of concrete.
 Low level waste can be placed in steel and concrete drums and taken to suitable land or ocean dumps.
 Radiation symbol.
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