The quantity of fungal spores collected in routine aerobiological monitoring of atmosphere in Tartu 1989–1994 was studied with respect to two aspects: daily mean concentration (measured as the number of spores in cubic metre of air in 24 hours), and spore totals of a period (measured as the number of spores in cubic metre of air in a period). The aerobiological calendar method was used to indicate seasonal character of the quantity of spores. During the 6-year period the main spore season occurred from March to November, the total annual amount of fungal spores exceeded 1×106 spores in cubic metre per year. The seasonal dynamics was expressed clearly in both daily mean concentrations of spores and seasonal spore totals.
