الملخص

The present study included the effect of lead on some of biochemical variables for (150) worker from non smokers normal male workers who occupationally exposed to lead pollution, through their daily work. The exposure periods were less than (10) years, between (11-20) years and more than (20) years for (42) printing workers, (62) painters, (20) radial photographers and (26) TV repairers and (28) normal male persons lived in villages aside from lead pollution as control group. The results showed that accumulate lead element through the different exposure periods. The concentration of the accumulated lead in the painters blood was (8.87168.81) Ug/100 cm3 blood. The results also showed less lead accumulation in the printing workers, radial photographers and TV repairs with varying ratios. The present study showed that exposures to lead significantly increase urea, cholesterol and triglycerides concentration for exposure periods . The results also included determination the activity of two enzymes: Acid phosphatase (ACP), and Acetylcholinestreas (AchE) in the groups exposed to lead pollution for different periods. The results showed a significant increase in the activity of acid phosphatase enzyme in all studied groups. Its activity in the serum of the painters was (0.17  5.68) IU/L for more than (20) years exposure period compare with the control group (2.7  0.21) IU/L. Finally the results showed that the activity of acetylcholinestrase is similar to that of acid phosphatase as there was a significant increase in the activity through the exposure periods for all the studied groups compared with control.