20.

Pott R. Control of lead exposure as practiced in a lead foundry. Zentralplatt fur Arbeltsmedizin Arbeitsschutz. 1961; 11:211-214 (Sept.). (2317) [The author discusses his practical experience as industrial supervisor of health for 600 workers in a Pb foundry in Germany. He objects to the employment of women and adolescents <21 yr of age in places of Pb exposure, and does not recommend the hiring of workers with various respiratory gastrointestinal, renal and nervous disturbances. This policy is advisable for health reasons as well as for medicolegal considerations because of the difficulties arising later in the appraisal of eventual workman's compensation claims. Generally, workers exposed to Pb should be examined every 1-3 mo. The author defines what is understood by a Pb-carrier, as opposed to a state of poisoning, ie, in the latter, symptoms occur, while in the former, while elevated absorption is indicated, a worker may feel well and have no complaints. He also considers that technical improvements should be taken into consideration prior to medical measures.
Various dust-eliminating devices and mask are discussed as well as records for follow-up studies of each worker. Prophylactic treatment of the workers with EDTA has been practiced with good results for 4 yr. It was found that a long lasting treatment with small doses of 1 g EDTA/day was more successful than a 3-4 wk treatment of 3 g EDTA/day orally.

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