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Relationship between bronchiolar dose and lung carcinoma induction following inhalation of /sup 239/PuO/sub 2/ in rats

Conference ·
OSTI ID:6744701
This manuscript describes preliminary observations in a lifespan and serial sacrifice study with 3332 female, Wistar rats exposed to high-fired /sup 239/PuO/sub 2/ aerosols. Sufficient numbers of sham-control and low dose (equivalent to maximal permissible occupational lung deposition of 0.6 kBq in standard man) animals are provided to statistically estimate lung cancer risk and define the cellular-microdosimetric relationships leading to lung tumor formation. Whole-body counting for /sup 169/Yb tagged /sup 239/PuO/sub 2/ aerosol provided a very accurate method for determining Pu ILB in individual rats (Sanders et al., 1986). The experimental design, methodology and early results of the lifespan study have been previously reported (Sanders et al., 1986, 1988a). 7 refs., 3 figs.
Research Organization:
Pacific Northwest Lab., Richland, WA (USA)
DOE Contract Number:
AC06-76RL01830
OSTI ID:
6744701
Report Number(s):
PNL-SA-15710; CONF-8809137-2; ON: DE89001474
Country of Publication:
United States
Language:
English