In this study, the release of fungal spores from wet gypsum boards was measured as function of incubation time. The release of fungal spores was induced by jets of air impacting from rotating nozzles. Penicillium chrysogenum and Trichoderma harzianum were cultivated on wet wallpapered gypsum boards. In one experiment, the release from undisturbed boards was measured at 5-7 days intervals. In a second experiment, the release was measured at 5-10 days intervals on the same boards, simulating repeated disturbance. Released spores were either measured by a particle sizer or sampled on a filter. The results show that incubation time is important for the fraction of spores released from the surface, and that repeated disturbance by air on fungal growth does not induce further release. The age of the culture did not influence on the size of the released spores

Kildes? J, Kruse P, Madsen AM, W¨ąrtz H, Wilkins K. Fungal spores from wet gypsum boards relationship between release and age of culture. In: Levin H, Bendy G, Cordell J (eds). Indoor Air 2002. Proceedings: 9th International Conference on Indoor Air Quality and Climate, Monterey, California June 30 - July 5, 2002. The International Academy of Indoor Air Sciences. Santa Cruz, CA. 2002;2:400-4.

• envelope materials : gypsum
• fungi: damage to buildings
• fungi: spore, aerosol

1. Identification of the main thermal characteristics of building components using MATLAB  

1. Determination of fungal spore release from wet building materials
2. Variation of volatile organic compound patterns of mold species from damp buildings
3. Volatile metabolite patterns for the identification of common indoor mold species
4. Volatile metabolites from indoor molds grown on media containing wood constituents
5. Volatile metabolites from mold growth on building materials and synthetic media