EN
Microbiological research on bioaerosols was carried out at the Municipal Sewage Treatment Plant in Toruń. The number of staphylococci in the atmospheric air was determined at grit chambers, aeration tanks, and in the vicinity of maturing compost piles. On the basis of Polish Standards, a medium air pollution with staphylococci was reported at the object, the majority of them occurring in the air around the compost piles in summer. The antibiotic-resistance of the 42 tested strains of Staphylococcus spp. showed the greatest sensitivity to metacycline (59.6%) and then to erythromycin and vancomycine (40.5%). Novobiocine, to which 66.7% resistant strains were found, appeared to be the least effective antibiotic.