Abstract
Stable lead and $sup 210$Pb intake, ingestion, and inhalation by residents of New York City were determined. Measurement of excreta samples provided data to establish a mass balance of stable lead and $sup 210$Pb. These results indicate that no more than 5 $mu$g of stable lead and 0.1 pCi of $sup 210$Pb are retained daily by residents of New York City. Analyses of bone samples have provided estimates of the skeletal burden of stable lead and $sup 210$Pb. Using the ICRP model, intake data, and assuming 100 percent skeletal deposition, the calculated stable lead and $sup 210$Pb values are in good agreement with the experimental results. The data indicate that inhalation is the principle source of stable lead to residents in New York City. (auth)
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