The study presents the results of research on microbial communities in fuel-oil-contaminated soil. The greatest quantity of bacteria and yeasts was detected in highly polluted soil. On the contrary, the quantity of fungi and their species composition there was rather poor. In this type of soil dominant fungi and yeast-like fungi species were Geotrichum candidum Link ex Pers. and Rhizopus stolonifer (Ehrenb. ex Fr.) Vuill. Microbiological parameters may be used as an indicator of the environmental contamination level.
Keywords: bacteria, yeast, fungi, fuel-oil, soil pollution.