Culturability and toxicity of sick building syndrome-related fungi over time

Journal of Occupational and Environmental Hygiene
Stephen C WilsonDavid C Straus

Abstract

Two experiments were conducted regarding the culturability and toxicity of fungi located on building materials over time and the efficacy of seven laboratory techniques in recovering culturable fungi from sample swabs. In the first experiment, eight sections of drywall were inoculated with Stachybotrys chartarum and stored at 25 +/- 5 degrees Celsius and 20-60% relative humidity (RH) for up to two years. Another eight sections of ceiling tile were stored at 100% RH for 1 year. Six sections of ceiling tile and 15 swabs were also inoculated with Penicillium chrysogenum and S. chartarum respectively and stored under the same conditions for 8 months and 3.3 years. All materials were tested for culturability at the end of the storage period. S. chartarum-inoculated samples were also tested for toxicity. In the second experiment (replicated twice), S. chartarum and Chaetomium globosum were inoculated onto 84 swabs each. Storage was up to 266 days at 25 +/- 5 degrees Celsius and 20-60% RH. Seven techniques were compared regarding the recovery of culturable fungi from the swabs over different time points. Results for Experiment 1 showed that all samples were culturable after the storage period and that the S. chartarum-inoculated drywa...Continue Reading

References

Dec 23, 1998·Occupational and Environmental Medicine·J D CooleyD C Straus
May 1, 1999·Applied and Environmental Microbiology·K H EnglerI H Evans
May 29, 1999·Environmental Health Perspectives·S GravesenK F Nielsen
Jul 1, 1999·Current Microbiology·D L Price, D G Ahearn
May 11, 2000·The Journal of Asthma : Official Journal of the Association for the Care of Asthma·M Mahmoudi, M E Gershwin

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Citations

May 10, 2007·Journal of Occupational and Environmental Hygiene·Stephen C WilsonDavid C Straus
Mar 10, 2007·The Tohoku Journal of Experimental Medicine·Mio IshibashiYoshiharu Aizawa
Oct 27, 2009·Toxicology and Industrial Health·David C Straus

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