5224 E. Indiana Beach Rd., Monticello, Indiana 47960 - (574) 583-4141. 5224 E. Indiana Beach Rd., Monticello, Indiana 47960 - (574) 583-4141.
Once the total effective dose to the embryo/fetus of the declared pregnant woman exceeds 400 mRem, she will be restricted from any further work involving occupational radiation exposure for the remainder of the pregnancy.
In the United States, the NRC limits occupational radiation exposure to adults working with radioactive material to 5 rem per year. The limit can be raised to 25 rem when there's an emergency; that level is still not considered dangerous. Radiation levels at Fukushima shot up to 0.8 rem per hour after an explosion at one of the nuclear reactors earlier today (March 15). If emergency workers had not been evacuated shortly afterward, they would have gotten their yearly occupational dosage in just over 6 hours.