||Assessment of Fungal Growth on Ceiling Tiles under Environmentally Characterized Conditions.
Foarde, K. ;
Dulaney, P. ;
Cole, E. ;
VanOsdell, D. ;
Ensor, D. ;
||Research Triangle Inst., Research Triangle Park, NC.;Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
Penicillium Aspergillus ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||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.
||Presented at Indoor Air '93, Helsinki, Finland, July 4-8, 1993. Sponsored by Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
|NTIS Title Notes
||Rept. for Nov 92-Feb 93.
||Reprint: Assessment of Fungal Growth on Ceiling Tiles under Environmentally Characterized Conditions.
||89B; 89G; 68G; 57U; 94E
||PC A02/MF A01