Final answer:
The limit for occupational exposure to radiation per year is typically 20 to 50 mSv. This limit varies by country, but for medical and nuclear power workers, it is generally around this range. Smaller doses, like those at or below 50 rem, tend to cause limited health effects.
Step-by-step explanation:
The limit for occupational exposure to radiation per year is typically 20 to 50 mSv. This limit varies by country, but for medical and nuclear power workers, it is generally around this range. Higher doses may be allowed for hands, while much lower doses are allowed for reproductive organs and fetuses of pregnant women.
It is important to note that radiation doses of 600 rem and higher are usually fatal, while a dose of 500 rem can kill half of the exposed subjects within 30 days. Smaller doses, like those at or below 50 rem, tend to cause limited health effects, although long-term health problems like cancer or genetic changes may still occur.
Keywords: occupational exposure, radiation, limit, mSv, health effects, cancer, genetic changes