Ionizing Attachment Six

	U.S. Department of Labor
	Occupational Safety & Health Administration
	www.osha.gov		[skip navigational links]	Search	Advanced Search \| A-Z Index

Safety and Health Topics> Ionizing Radiation > Intro to Ionizing Radiation > Ionizing Attachment Six

Ionizing Attachment Six

Maximum Permissible Dos 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)

Back to Top www.osha.gov		www.dol.gov
Contact Us \| Freedom of Information Act \| Customer Survey Privacy and Security Statement \| Disclaimers
Occupational Safety & Health Administration 200 Constitution Avenue, NW Washington, DC 20210