The release of spores from different typical indoor air fungi has been measured under controlled conditions. The fungi were cultivated for a period of 5-6 weeks on wallpapered wet sterilised gypsum boards at a relative humidity of approximately 97%. A special designed small chamber (P-FLEC) was placed on the gypsum board. The release of fungal spores was induced by an air-flow through rotating nozzles. The spores and other particles released from the surface were transported by the air flowing from the chamber through a top outlet to a particle counter and sizer. For two fungi (Penicillium chrysogenum and Trichoderma harzianum), the effect of changed humidity was also studied. For this experiment, the number of spores produced on the gypsum board and subsequently released was quantified. The method was found to give very reproducible results. It may also be applied for field studies and for generation of spores for exposure stud ies.

• fungi: molds in buildings
• fungi: spore, aerosol

1. Determination of fungal spore release from wet building materials  

1. Determination of fungal spore release from wet building materials
2. Moulds and health - an epidemiological study  

1. Determination of ergosterol on mouldy building materials using isotope dilution and gas chromatography--tandem mass spectrometry
2. Determination of fungal spore release from wet building materials
3. Growth of moulds on building materials under different humidities
4. Microfungal contamination of damp buildings - examples of risk constructions and risk materials
5. Mould growth on building materials: Secondary metabolites, mycotoxins and biomarkers
6. Mycotoxin production by indoor molds
7. Production of mycotoxins on artificially and naturally infested building materials
8. Production of mycotoxins on artificially inoculated building materials
9. The Danish Research Programme: "moulds in Buildings" 1998-2001  

1. Determination of fungal spore release from wet building materials
2. Microbiology on indoor air'99- what is new and interesting? an overview of selected papers presented in Edinburgh, August, 1999
3. Microfungal contamination of damp buildings - examples of risk constructions and risk materials
4. Microfungal contamination of damp buildings: Biological aspects
5. Production of mycotoxins on artificially and naturally infested building materials
6. Production of mycotoxins on artificially inoculated building materials
7. Symptoms associated to work in a water damaged school building
8. The Danish Research Programme: "moulds in Buildings" 1998-2001  

1. Determination of fungal spore release from wet building materials
2. Growth of moulds on building materials under different humidities
3. Microfungal contamination of damp buildings - examples of risk constructions and risk materials
4. Production of mycotoxins on artificially and naturally infested building materials
5. Production of mycotoxins on artificially inoculated building materials
6. Quality control of computational fluid dynamics in indoor environments  

1. Determination of fungal spore release from wet building materials
2. Production of mycotoxins on artificially and naturally infested building materials
3. Production of mycotoxins on artificially inoculated building materials  

1. Prediction of indoor concentration of 0.5--4 mm particles of outdoor origin in an uninhabited apartment