The aim of this work is long-term observation of
microbiological quality of indoor air in selected rooms
of university buildings located in the centre of Poznań,
where thousands of people spend several hours studying
and working in enclosed spaces every day and
where microbiological quality of indoor air can influence
their health and physical condition. This publication
presents preliminary results of an indoor air study
conducted in 2002 and in 2003. The study embraced a
measurement of the concentration of bacteria and fungi
in the air of selected rooms and microbial composition
of the air.