The level of lead in the blood of 315 volunteers (167 male and 148 female) who had not been exposed professionally to the metal, was measured by the atomic absortion spectrophotometer method. The average value was 17.2 µg/100 ml in the males and 14.2 µg/100 ml in the females. It is suggested that new studies should be carried out, using a definite population and a probabilistic sampling.
Lead; Spectrophotometry, atomic absorption