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  • 1
    facet.materialart.
    Unknown
    Fungal colonization of fiberglass insulation in the air distribution system of a multi-story office building: VOC production and possible relationship to a sick building syndrome (1996)
    In:  Other Sources
    Details
    Publication Date: 2011-08-24
    Description: Complaints characteristic of those for sick building syndrome prompted mycological investigations of a modern multi-story office building on the Gulf coast in the Southeastern United States (Houston-Galveston area). The air handling units and fiberglass duct liner of the heating, ventilating and air conditioning system of the building, without a history of catastrophic or chronic water damage, demonstrated extensive colonization with Penicillium spp and Cladosporium herbarum. Although dense fungal growth was observed on surfaces within the heating-cooling system, most air samples yielded fewer than 200 CFU m-3. Several volatile compounds found in the building air were released also from colonized fiberglass. Removal of colonized insulation from the floor receiving the majority of complaints of mouldy air and continuous operation of the units supplying this floor resulted in a reduction in the number of complaints.
    Keywords: Life Sciences (General)
    Type: Journal of industrial microbiology (ISSN 0169-4146); Volume 16; 5; 280-5
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Unknown
    Fungal colonization of air filters and insulation in a multi-story office building: production of volatile organics (1997)
    In:  Other Sources
    Details
    Publication Date: 2011-08-24
    Description: Secondary air filters in the air-handling units on four floors of a multi-story office building with a history of fungal colonization of insulation within the air distribution system were examined for the presence of growing fungi and production of volatile organic compounds. Fungal mycelium and conidia of Cladosporium and Penicillium spp. were observed on insulation from all floors and both sides of the air filters from one floor. Lower concentrations of volatile organics were released from air filter medium colonized with fungi as compared with noncolonized filter medium. However, the volatiles from the colonized filter medium included fungal metabolites such as acetone and a carbonyl sulfide-like compound that were not released from noncolonized filter medium. The growth of fungi in air distribution systems may affect the content of volatile organics in indoor air.
    Keywords: Life Sciences (General)
    Type: Current microbiology (ISSN 0343-8651); Volume 35; 5; 305-8
    Format: text
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    NASA TECHNICAL REPORTS
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