Excretion rates of 210Po and 210Pb in prague inhabitants

Excretion rates of 210Po and 210Pb in the urine were investigated in 40 healthy inhabitants of Prague (22 males, 18 females, age: 23-70 y, non-smokers). In 20 inhabitants the excretion rates of 210Po and 210Pb in faeces were also studied. The mean urinary excretion rates of 210Po and 210Pb were 4.1 and 6.0 mBq d-1, respectively. It was demonstrated, statistically, that the urinary excretion rates of 210Po and 210Pb are higher in men than those in women. The highest excretion rates of 210Po and 210Pb found in the participants were 10.8 and 16.6 mBq d-1, respectively. The mean activity ratio of 210Po/210Pb in the urine was 0.73. The mean excretion rates of 210Po and 210Pb in faeces were 56.5 and 54.6 mBq d-1. The mean activity ratio of 210Po210Pb in faeces was 1.0. (authors)