Developing a common measurement will facilitate the comparative assessment of risks across and within sites. Figure 2 shows how the maximum annual allowable radiation doses for nuclear workers have declined with increasing understanding of radiation effects. What was acceptable in 1940 is no longer acceptable in 1996. Thus, the solution in 1996 can't be the same as in 1940. Maximum allowable radiation exposure per year for nuclear workers.
Standards are from diverse sources.
This graph summarizes these various standards in a single, consistent set of numbers and measurement units. A rem is the quantity of ionizing radiation whose biological effect is equivalent to that produced by one roentgen of x-rays. Review the effects and risks of tritium. The review includes results of a recently completed epidemiological study by others of possibly associated effects of occupational exposures at the Savannah River Site. The nature and concentration of other radionuclides or chemicals that may be present as co-contaminants will be considered.