RESEARCH PAPER
A year-round aeromycological study in Zagreb area, Croatia.
 
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Department of Microbiology, Faculty of Pharmacy and Biochemistry, University of Zagreb, Zagreb, Croatia
CORRESPONDING AUTHOR
Maja Segvić Klarić   

Department of Microbiology, Faculty of Pharmacy and Biochemistry, University of Zagreb, Schrottova 39, HR-10000 Zagreb, Croatia
 
Ann Agric Environ Med. 2006;13(1):55–64
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ABSTRACT
A 1-year aeromycological study was conducted in the area of Zagreb, thecapital of Croatia, in order to establish seasonal variations in the composition and concentration ofaeromycota. Sampling was carried out at 3 locations: the city centre, the Pharmaceutical botanical gardenand the mountain of Medvednica, at regular intervals using the Mas 100 Eco Air-sampler with Sabouraud-dextroseagar. Airborne fungi peaked during spring and summer (110-284 cfu/m3), while lower levels were detectedin autumn and winter at each of the 3 sampling sites (6-128 cfu/m3). Significantly lower concentrationswere found in Medvednica region (p<0.01) during most sampling periods. Yeasts were present in higherconcentrations in autumn and winter (11-46 cfu/m3) than during spring and summer (9-11 cfu/m3) in thecity centre and botanical garden. In the Medvednica region, yeasts were found at significantly lowerconcentrations than at other locations only during the autumn and winter (1-16 cfu/m3). The dominantfungi contributing to these differences were species of Cladosporium, Penicillium and Alternaria. Thesegenera comprised between 30.4-79.5% of the samples. Other stable components of aeromycota were Fusarium, Aspergillus and sterile mycelia (11.1-44.0%). Total counts of airborne fungi as well as individual countsof Cladosporium and Alternaria showed significant positive correlations with temperature and solar radiation(p<0.05). Alternaria also showed a significant correlation with wind speeds while Cladosporium wasnegatively correlated with atmospheric pressure (p<0.05). Yeasts showed a significant positive correlationwith relative humidity, yet were negatively correlated with temperature and solar radiation in the citycentre and the botanical garden. In contrast, a significant positive correlation in the case of yeastswas observed in the Medvednica region with respect to temperature and solar radiation (p<0.05).
eISSN:1898-2263
ISSN:1232-1966