Cesium137 Excretion and Retention Following Single Exposure

Periodic whole-body counting and excretion analyses were performed on a subject who had incurred a 4- to 7-microc internal dose of Cs137. Data are presented correlating urine and fecal excretion with whole-body counts. A single exponential retention equation was obtained during the period of study, which was from 189 to 582 days after exposure. The retention half time during this period was 80 days. Comparison with the work of other investigators is included.