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OLS Field Name OLS Field Data
Main Title Assessment of Fungal Growth on Ceiling Tiles under Environmentally Characterized Conditions.
Author Foarde, K. ; Dulaney, P. ; Cole, E. ; VanOsdell, D. ; Ensor, D. ;
CORP Author Research Triangle Inst., Research Triangle Park, NC.;Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
Publisher 1993
Year Published 1993
Report Number EPA-R-817083-01-0; EPA/600/A-93/184;
Stock Number PB93-222024
Additional Subjects Ceilings(Architecture) ; Fungi ; Buildings ; Tiles ; Tests ; Microorganisms ; Moisture ; Spores ; Penicillium Aspergillus ; Reprints ;
Holdings
Library Call Number Additional Info Location Last
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Status
NTIS  PB93-222024 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 11/22/1993
Collation 8p
Abstract
The paper discusses investigation of the impact of the building environment on the ability of building materials to support microbial growth, using static chambers with defined relative humidity, temperature, and light conditions. The ability of fungi to grow on materials is well established, given sufficient moisture and nutrition. Four types of ceiling tile were investigated: one aged, two mineral fiber/crystalline silica, and one fire-resistant. Ceiling tile pieces were placed in the chambers, allowed to chamber-equilibrate, and inoculated with either Penicillium glabrum or Aspergillus versicolor. The critical bulk moisture content for organism growth varied depending on both tile type and test mold. P. glabrum counts increased three orders of magnitude in 28 days. A versicolor did not grow as well. Organism related differences are apparent.