Long-term monitoring and prevention of occupational lead exposure in a production plant.

During 19 years of monitoring and prevention of occupational lead exposure in a production plant the authors studied lead emission sources and exposure intensity encountered in the work place, the indices of current and long-term lead exposure, and markers of toxic effects of lead in 132 persons examined together 935 times. Lead poisoning was confirmed in 20 persons, i.e. about 2 per cent of examinations, whereas in 12 per cent signs of enhanced lead absorption were found. Based on a complex simultaneous assessment of many parameters, appropriate prophylaxis and therapy were applied to lessen the toxic effects of lead exposure. It is pointed out that technical improvements are fundamental for limiting lead emission and absorption in the work place. As it has been demonstrated, the proper cooperation between the physician, the toxicological laboratory, occupational safety service and the plant administration effectively contribute to the limitation or even elimination of lead exposure, thus reducing the possible future health effects of long-term lead exposure.