Re: Four Non-HPs Against One Health Physicist

["Otto G. Raabe" <ograabe@UCDAVIS.EDU>]

September 20, 2003

Davis, CA



In studies of more than 1700 (mostly young) people with significant intakes

of radium-226, it was found that no person with total systemic intakes

smaller than 80,000,000 pCi developed bone cancer or any other adverse

effects over their lifetimes. [Reference: R. E. Rowland, RADIUM IN HUMANS,

Argonne National Laboratory, IL, 1994.] 



There is no known or expected public health risk associated with an

ingestion intake of 10 pCi/day of radium-226 in drinking water [5 pCi/L

times 2 liters per day, the current public drinking water standard]. A

person who lives 100 years on this level of radium-226 in drinking water

would take in only one-thousandth of the observed potentially hazardous

amount over their whole life time (assuming 20% of ingested radium-226

enters the systemic circulation).



Otto

**********************************************

Prof. Otto G. Raabe, Ph.D., CHP

Center for Health & the Environment

(Street Address: Bldg. 3792, Old Davis Road) 

University of California, Davis, CA 95616

E-Mail: ograabe@ucdavis.edu

Phone: (530) 752-7754   FAX: (530) 758-6140

***********************************************



************************************************************************

You are currently subscribed to the Radsafe mailing list. To unsubscribe,

send an e-mail to Majordomo@list.vanderbilt.edu  Put the text "unsubscribe

radsafe" (no quote marks) in the body of the e-mail, with no subject line.

You can view the Radsafe archives at http://www.vanderbilt.edu/radsafe/