Examination of the outdoor air also showed that microorganism
concentrations in the outdoor changed within
the whole investigated period and in 2002 a prevalence
of fungi was observed. Higher mould concentrations in
investigated rooms in 2002 compared to 2003 can be
explained by their high concentration in the outdoor air.
Only the quality of bacterial and fungal flora in the air of
toilets (Fig. 4) was much less influenced by outdoor air
contamination