The Effect of Inhaled Pu239O2 on the Life Span of Mice

Abstract
Approximately 800 mice, divided into four age groups varying from 122 to 369 days, were given single exposures to Pu239O2 aerosols. Each age group was separated into a control and five subgroups, containing different amounts (0.038–0.72 nc) of Pu239 in the lung. The mean age at time of death was established for each subgroup. Comparison of Pu239-exposed mice with controls indicated no significant shortening of life span. No malignant tumors were seen.

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