[Clinical and cytological examinations on industrial workers exposed to mineraloilaerosols (author's transl)].

Clinical, roentgenological and spirometric examinations were performed on 217 industrial workers exposed to mineraloilaerosols and 197 control persons. No pathological results were to be found which could be connected with the professional employment. In both groups only in a few sputa lipid in respiratory epithelium cells was seen. We also did not find any evidence according to connection with the employment. The oilaerosolconcentrations were normaly, but during the unloading soot for a short time concentrations of anthrazeneoilaerosols up to 30 milligram per cubic meter were measured. Sputa provoced on persons with an empty stomach using aerosols of hypertonic salt solution were more effective than unprovoced sputa and sputa after meal.