Summary
There are few reports on lead exposure of children in or near large cities which compare the blood lead values of those who live towards the center of cities and those living in the suburbs. Since lead poisoning among children in the United States is a serious problem, the authors wished to study the effects of lead in the environment on the young population in and near Tokyo. The results indicated much lower blood lead levels in school children than in adults in Tokyo. There is a statistically significant difference in PbB levels between urban and suburban children although the actual difference was only 1 – 2 μg/100 g. Thus children living in urban Tokyo seem to have slightly higher body burdens of lead than suburban children. This difference in lead body burden is most probably not attributable to lead in ambient air but to other factors such as food. However, the possibility of the contribution of lead in ambient air cannot be totally rejected. Further investigation is required to identify the factor or factors which are responsible for this phenomenon.
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Tsuchiya, K., Okubo, T., Nagasaki, M. et al. Biologic effects of lead on school children of urban and suburban Tokyo. Int. Arch Occup Environ Heath 38, 247–257 (1977). https://doi.org/10.1007/BF00378336
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DOI: https://doi.org/10.1007/BF00378336