1. 100mSv over 5 years or 50mSv annually
2. 50mSv over 5 years or 10mSv annually
3. 500mSv over 5 years or 100mSv annually
4. 1000mSv over 5 years or 100mSv annually

ANSWER

1. 100mSv over 5 years or 50mSv annually

WHY IS IT RIGHT All exposures to ionizing radiation carry a risk of biological damage, although this risk decreases as the exposure decreases. For example, the risk associated with natural background radiation is very small, although elevated levels of naturally occurring radon increase the risk of lung cancer. For workers in certain industries, such as miners and medical radiographers, the risk is slightly higher. Exposure levels as a […]