If you survive a disaster such as a nuclear detonation, radiation then becomes the silent killer which you need to avoid. Radiation is measured in (mSv) millisieverts and a persons normal exposure to radiation in any given year under normal conditions is about 2.4 mSv. The following is an indicator of what various radiation readings are in millisieverts and what can constitute exposure.
- 0.01 mSv = A dental x-ray.
- 0.1 mSv = Dose of radiation from a chest x – ray
- 0.4 mSv = Mammogram breast x-ray exposure.
- 2.4 mSv = Natural radiation most people are normally exposed to each year.
- 10 mSv = Radiation dose in full body CT scan.
- 15 mSv = CT scan abdomen and pelvis.
- 100 mSv = Lowest annual dose at which any increase in cancer is clearly evident.
- 700 mSv = Vomiting within hours of exposure.
- 750 mSv = Hair loss two weeks after exposure.
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