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Indoor and Built Environment
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Identification of Airborne Microfungal Populations from Home Environments within the Dallas-Fort Worth (Texas) Region

Kevin A. Kuehn

Mycological Consultant, Dallas, Tex.

Robert Garrison

Mycotech Biological Inc., Jewett, Tex.

Larry Robertson

Mycotech Biological Inc., Jewett, Tex.

Robert D. Koehn

Department of Biology, Southwest Texas State University, San Marcos, Tex.

Alfred L. Johnson

Environmental Health Center, Dallas, Tex., USA

William J. Rea

Environmental Health Center, Dallas, Tex., USA

Airborne mycofloral components of domestic interiors within the Dallas-Fort Worth metropolitan area were examined to elucidate more fully the fungal species most prevalent within home environments of this region. During a 3-year period (1988-1990), a total of 100 indoor home environments were examined for the presence of fungal organisms. Investigations involved the gravity exposure of either 2.0% malt extract or 1.7% corn meal nutrient agar at various locations within each study home. Cladosporium, Alternaria, Peni cillium, Drechslera, Epicoccum and Aspergillus are the most abundant groups of fungal genera from these sites. Additionally, data obtained from indoor studies were compared to cumulative outdoor aerometric data to determine the degree of similarity in frequency between indoor and outdoor fungal gen era. The routine examination of airborne organisms from inhabited areas, whether home or office, may provide useful information in the initial treat ment process for fungal-related hypersensitivity. Clinical evaluation of pa tients who react to fungal components identified from within their homes could be performed and may provide diagnostic assessment to determine spe cific individual hypersensitivity.

Key Words: Airborne fungi • Indoor air quality • Hypersensitivity • Respiratory hypersensitivity

Indoor and Built Environment, Vol. 1, No. 5, 285-292 (1992)
DOI: 10.1177/1420326X9200100506
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