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.
Mots-clés Pascal : Fungi, Thallophyta, Bâtiment bureau, Filtre air, Isolation, Contamination biologique, Composé volatil, Métabolite, Pollution intérieur
Mots-clés Pascal anglais : Fungi, Thallophyta, Office building, Air filter, Insulation, Biological contamination, Volatile compound, Metabolite, Indoor pollution
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 98-0068972
Code Inist : 002B30A02C. Création : 14/05/1998.