Assessment of exposure to noise at various workplaces in a chemical plant.

The study was carried out on some workplaces in the departments of various degree of unfavourable working conditions in the chemical plant. The exposure to noise was evaluated and the incidence of occupational diseases and suspected occupational diseases was analyzed. In the studied period of time high values of intensity of noise were found at workplaces, very often exceeding the permissible hygienic standards. In the years 1997--1999 there were 4 cases of occupational damage to hearing, and within two last years no occupational damage to hearing was found.