A Study on the Excretion of Pb-210 and Po-210

Abstract

The amount of Po-210 excreted in urine and feces was more influenced by Po-210 that was taken with food and drink than taken through inhalation.
The amount of Pb-210 in urine of mining workers among uranium mine workers was higher than that of the non-uranium mine workers. It was thought that this fact was due to the working environment in uranium mine the amount of Pb-210 being a few tens times higher than that in normal environment.
The activity ratios of Po-210 of faecal to urinary excretion are widely distributed, however, the average value of many samples approached to 10.
Urinary excretion of Po-210 was highest after 24 hours of ingestion, but for faecal excretion, it was highest after 3 days.