High level contamination and Low level contamination
High levels of contamination may pose major risks to people and
AD9850 the environment. People can be exposed to potentially lethal radiation levels, both externally and internally, from the spread of contamination following an accident (or a deliberate
S190 initiation) involving large quantities of radioactive material. The biological effects of external exposure to radioactive contamination are generally the same as those from an external radiation source not involving
2SC260 radioactive materials, such as x-ray machines, and are dependent on the absorbed dose. The hazards to people and the environment from radioactive contamination depend on the nature of the radioactive contaminant, the level of contamination,
MSM6280 and the extent of the spread of contamination. Low levels of radioactive contamination pose little risk, but can still be detected by radiation instrumentation. In the case of low-level contamination by isotopes with a short half-life, the
PCD8584 best course of action may be to simply allow the material to naturally decay. Longer-lived isotopes should be cleaned up and properly disposed of, because even a very low level of radiation can be life-threatening when in long exposure to it.