Quantitative and Qualitative Assessment of Mycological Air Pollution in a Dormitory Bathroom with High Humidity and Fungal Stains on the Ceiling a Case Study
Agata Piecuch 1  
,   Rafał Ogórek 1  
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Department of Mycology and Genetics, Institute of Genetics and Microbiology, University of Wrocław, Przybyszewskiego Street 63/77, 51-148 Wroclaw, Poland
Rafał Ogórek   

Department of Mycology and Genetics, Institute of Genetics and Microbiology, University of Wroclaw, Przybyszewskiego Street 63/77, 51-148, Wrocław, Poland
Submission date: 2020-03-14
Acceptance date: 2020-07-06
Online publication date: 2020-11-26
The development of indoor molds is mainly connected to the room conditions, like air humidity, temperature or pH. The sanitary rooms, usually with elevated dampness, are a good environment for fungal growth and should be monitored for fungal concentration due to the risk of an elevated exposure to fungal allergens and mycotoxins. In the present work the diversity and the concentrations of fungal pollutants in the dormitory bathroom of Polish University was evaluated for both the ceiling and the air. The results showed that Cladosporium cladosporoides was the only species found on the dark stains on the ceiling, but in the air the variety of fungi was higher, with a total of 6 species: Aspergillus flavus, A. niger, C. cladosporioides, Fusarium poae, Penicillium chrysogenum and Rhizopus nigricans. The increased concentration of A. niger and C. cladosporoides in the air suggests further control of the air pollution in order to avoid excessive exposure to mycotoxins and allergens. Moreover, the concentration of airborne fungi inside the facility exceeded some standards of fungal air contamination stated as dangerous for human health. Our study allows for unambiguously identifying isolated fungi and develop recommendations, to prevent the present outbreak of fungi as well as in the future.