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Re: airborne U



July 23, 1997

Dear Mike:

Calculation of radiological risks from pure U-238 is meaningless since the
actual risk depends on the chemical toxicity of uranium in the kidney not in
the bone or lung, although both the bone and lung can be a reservoir of this
potentially toxic element.

Otto
		*****************************************************
		Prof. Otto G. Raabe, Ph.D., CHP
                [President, Health Physics Society, 1997-1998]
		Institute of Toxicology & Environmental Health (ITEH)
		     (Street address: Old Davis Road)
		University of California, Davis, CA 95616
		Phone: 916-752-7754     FAX: 916-758-6140
		E-Mail: ograabe@ucdavis.edu
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