[25 year assessment of occupational exposure to x-rays in Poland]

The paper describes the organization and methods for assessment of occupational exposure of X-ray workers. The results of the dose measurements carried out during 1966-1991 at the Institute of Occupational Medicine in Lodz are discussed. In 1991 the measurements concerned about 25,500 persons employed in 2600 institutions. About 99.5% of the monitored population receives annual dose equivalent below 0.1 of the limit i.e. below 5 mSv. Doses exceeding the annual limit occur very rarely--a few cases a year.