摘要：Recent observations have shown a great decrease in the levels of atmospheric lead concentrations in cities in Japan today compared with levels in the 1950's, probably due to rigid control of lead discharge from factories and the promotion of lead-free gasoline in particular. We attempted to estimate the amount of lead inhaled and absorbed by the human body in Japan today. With the average atmospheric lead concentration in the average Japanese city today at about 0.1μg/m3, we obtained the values of 1.6 to 2.2μg/day for the amount of lead inhaled and 0.8 to 1.1μg/day for the amount of lead absorbed by the average Japanese adult.
