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"Low Level Revision 1 1.3 1.3.1 |
Dr. Egon Lorenz, the principle
radiobiology investigator of the National Cancer Institute, reported on the preliminary
mice experiments conducted by the Manhattan Project 1941-1946 (in Zirkle 1954) that: "Male and female mice continuously irradiated with 4.4, 1.1, 0.11 and 0.044 r per 24-hr day had no hematopoietic system damage with highest accumulated dose over 2000 r. "Mammary-tumor incidence was not changed, only the gonads showed irradiation damage, mainly in animals exposed to 4.4 r/day. "Breeding experiments showed females permanently sterilized by total doses of 465 r given at the rate of 4.4 r/day. "Subsequent generations reared and maintained in exposure fields of 1.1 and 0.11 r per 24-hr day showed no damage to chromosomes as evidenced by the raising of five to six generations with normal litter size and apparently normal life span."
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Lorenz 1954
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