Maximum Permissible Dose Equivalent for Occupational Exposure
| Combined whole body occupational exposure | |
|---|---|
| Prospective annual limit | 5 rems in any 1 yr |
| Retrospective annual limit | 10-15 rems in any 1 yr |
| Long-term accumulation | (N-18) x5 rems. where N is age in yr |
| Skin | 15 rems in any 1 yr |
| Hands | 75 rems in any 1 yr (25/qtr) |
| Forearms | 30 rems in any 1 yr (10/qtr) |
| Other organs, tissues and organ systems | |
| Fertile women (with respect to fetus) | 0.5 rem in gestation period |
| Population dose limits | 0.17 rem average per yr |
| (Reprinted from NCRP Publication No. 43, Review of the Current State of Radiation Protection Philosophy, 1975) |
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