Metabolic balances of $sup 210$Pb and $sup 210$Po in unexposed men
From 3rd international congress of the International Radiation Protection Association meeting; Washington, District of Columbia, USA (9 Sep 1973). The metabolic balances of naturally occurring /sup 210/Pb and its decay product /sup 210/Po were measured in each of 12 men maintained on a metabolic ward. These nuclides were determined in urine and feces from each subject collected for one month or more. Representative diets, drinking water, and atmospheric levels in the ward were also sampled. The mean overall balances (the difference between diet and excreta) of (--0.235 plus or minus 0.075) pCi /sup 210/Pb/day and (--0.337 plus or minus 0.100) pSi /sup 210/Po/day show that over the collection period, larger amounts were excreted than taken in the diet. Atmospheric intake accounts for an additional /sup 210/Pb intake of 0.07 pCi/day, but it contributes a /sup 210/Po intake of only about 0.02 pCi/day. The contribution of cigarette smoke and dietary levels of calcium to the balances is discussed. (auth)
- Research Organization:
- Argonne National Lab., Ill. (USA)
- NSA Number:
- NSA-29-018658
- OSTI ID:
- 4341371
- Report Number(s):
- CONF-730907--16
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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