EN
Mycological investigations were carried out in areas of intensive vehicle traffic (intersections) in Cracow. The results indicated considerable concentrations of fungi spores in the air at sites with heavy traffic (highest at 7007.0 spores/m3). At the control site, two hundred meters from an intersection, the number of fungi spores was several times lower (2802.8 spores/m3). Cladosporium herbarum, Penicillium viridicatum and P. lanosum, Aspergillus versicolor and A. fumigatus, and Alternaría alternata were noted at all sites examined.