EFFECT OF LOW LEAD CONCENTRATION ON HUMAN BODY

Abstract

The concentration of lead in the whole blood of 203 traffic policemen, whose mean value and standard error of lead content in blood showed 9.60±0.22 (95% upper limit of 13.7) μg/100 ml of blood, differed from the large in scale of cities at low lead con-centration less than 10 μg/m³ of air.
In comparison between traffic policemen and lead workers, the latter were signifi-cantly higher at the lead content and ALAD activity in erythrocytes than those of the former. The correlation between ALAD activity in erythrocytes and lead con-centration in blood was found in both workers, but among the samples under 15.0 μg pb/100 ml of blood in traffic policemen was not observed significant decrease of ALAD activity and any correlation.