Blood and environmental samples, including a quarterly 6-day duplicate diet, for nine mother/child pairs between the mothers and their children i overall contribution of tissue lead to blood lead. Results from this study sugst that fractioxia absorption of ingested lead by child 6-11 years of age is cmpable with absorption patterns observed among adult females in the 29-37-year-old age rang. Because p kinetic models apply a 40-50% absorpion even for 7-year-old children, firther iniions on fractional absotption of ingested lead by young children are warnted. Further investigaons aree ally needed in younger children than those who were subjects in the current study, particuarl idren in the 1-3-year-old age range. In addition, the effect of nutritional status and patterin of food intake on children's lead absrpton requaire inestigdton, par ly the increased prevalence of marginal nutrtional status among low-income populations that are at increased risk of elevated blood lead levels.