الفهرس 
AcknowledgmentOnly 14 pages are availabe for public view
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Abstract
An adequate supply of safe, wholesome food is essential to the health and ell-being of man. Food contamination becomes so widespread that it threatens iUman health and causes serious economic losses. Environmental contamination ith heavy metals such as Pb, Cd, Hg can lead to a contaminated diet going to ingested, and may represent a significant source for heavy metals intake. The aim .of the present study was! to estimate the dietary intake of heavy ~ metal contaminants for a sample of subjects with maximum food consumption dected from different zones of Cairo governorate. Such studies in Egypt are luite limited. From each of the five zones of Cairo Governorate one secondary school, nd one MCR centre were selected by simple random to conduct this study, and lue to certain constraints only one faculty and factory were chosen to represent ~e segments of university students and industrial workers. j-he total number of sample examined was 724 from both sexes distributed follow: 283 secondary school students, 141 university students, 135 pregnant omen, 115 lactating mothers and 50 industrial workers. The study proceeded in the following steps: I. Field survey for all participants to collect,: a) information on daily food consumption. 254 b) Blood samples from a subs ample (153) which represent about 20 of the total samples. Samples of all food items and drinking water, were collected from each zone studied in Cairo.