Abstract
Arsenic over permissible quantity was detected in water supplied from water-works of a primary school at Esashi, Iwate. The content of arsenic in surrounding soil water source was higher than that of other places. It was considered that the school water has been contaminated with arsenic dissolved out of surrounding soil, since gushed and oozed water was utilized as the water source. The contents of arsenic in urine, hair and nail of pupils in the school were determined. Urine : 46 pupils of 6th year (primary school) 0.048±0.023 mg/L (As) 43 pupils of 3rd year (junior high school) 0.054±0.019 mg/L (As) Hair : 140 pupils of the primary and junior high scool 0.31±0.12 μg/g (As) Nail : 136 pupils of the primary and junior high school 0.95±0.24 μg/g (As) These values were almost same as normal arsenic content.
