Contrary to outdoor air inside investigated
toilets significantly dominating microorganisms were bacteria
amounting couple of thousands cfu/m3, whereas the
level of mould spore concentrations reached the amount
of a few hundred cfu/m3. In 2003 bacteria dominated the
outdoor air, especially at the turn of September and October.
Bacteria concentration was about 5 times higher
in 2003 than in 2002. It is probably connected with the
weather conditions prevailing at that period of time, very
conducive to infections (i.e. rapid temperature decrease at
the beginning of studies period from 22°C to about 7°C in
the middle of this period and quite high relative humidity
at 70%