[Microclimatic conditions in medium-power plants and their effect on the human body].

The paper presents microclimatic conditions in a room of one of the power stations in the Upper-Silesian Industrial Region. Particularly strenuous, especially during summer, appeared to be the high air and radiant temperatures near ( boilers and furnaces), accompanied by considerable noise intensity. In addition, measurements and chemical analyses of airborne dust have been taken, and those did not demonstrate any significant risk to workers. Yet, the content of tar substances in dusts, including aromatic polycyclic hydrocarbons, potentially exposes workers to mutagenic and carcinogenic effects. Experimental studies on animals showed also coniogenic effects of airborne-ashes. Permanent exposure to toxic metals found in dusts as well as in workers blood and urine may induce metabolic disorders.