Abstract
A thirty days' balance study of cadmium and the cadmium ingestion experiment was carried out in two adults living in Tokyo, Japan. The mean daily amount of cadmium ingestion from foods and beverages were 48.18±7.89 (conc. 0.0203±0.00304 μg/g) and 46.92±7.17 μg/day (conc. 0.0181±0.00222 μg/g) for the two subjects. The mean daily excreted amount of cadmium in feces were 35.92±10.02 and 35.95±6.68 μg/day. The mean daily excreted amount of cadmium in urine were 4.23±0.77 and 3.68±0.87 μg/day for the two. The rates of not recovered cadmium ingested to feces were 23 to 26% in the both experiments. The other sources of intake, cigarette smoking and respiration, and the other routes of excretion, moustache, hair, nail, sweat and desquamated epidermis, were also discussed and tentative balance sheets of cadmium were presented.
