Correlation between the prevalence of certain fungi and sick building syndrome
Open Access
- 1 September 1998
- journal article
- Published by BMJ in Occupational and Environmental Medicine
- Vol. 55 (9), 579-584
- https://doi.org/10.1136/oem.55.9.579
Abstract
OBJECTIVE: To examine the role of fungi in the production of sick building syndrome. METHODS: A 22 month study in the United States of 48 schools (in which there had been concerns about health and indoor air quality (IAQ). Building indoor air and surface samples, as well as outdoor air samples were taken at all sites to look for the presence of fungi or their viable propagules. RESULTS: Five fungal genera were consistently found in the outdoor air and comprised over 95% of the outdoor fungi. These genera were Cladosporium (81.5%), Penicillium (5.2%), Chrysosporium (4.9%), Alternaria (2.8%), and Aspergillus (1.1%). At 20 schools, there were significantly more colony forming units per cubic metre (CFU/m3) (p < 0.0001) of propagules of Penicillium species in the air samples from complaint areas when compared with the outdoor air samples and the indoor air samples from noncomplaint areas. At five schools, there were more, although not significant (p = 0.10), Penicillium propagules in the air samples from complaint areas when compared with the outdoor air samples and the indoor air samples from noncomplaint areas. In 11 schools, the indoor air (complaint areas) fungal ratios were similar to that in the outdoor air. In these 11 schools Stachybotrys atra was isolated from swab samples of visible growth under wetted carpets, on wetted walls, or behind vinyl wall coverings. In the remaining 11 schools, the fungal ratios and CFU/m3 of air were not significantly different in different areas. Many of the schools took remedial action that resulted in an indoor air fungal profile that was similar to that outdoors. CONCLUSIONS: Propagules of Penicillium and Stachybotrys species may be associated with sick building syndrome.Keywords
This publication has 24 references indexed in Scilit:
- Fungi as contaminants in indoor airAtmospheric Environment. Part A. General Topics, 1992
- Field Studies on the Sick Building SyndromeaAnnals of the New York Academy of Sciences, 1992
- Microbiological agents as health risks in indoor air.Environmental Health Perspectives, 1991
- The sick building syndromeBMJ, 1985
- The sick building syndrome: prevalence studies.BMJ, 1984
- Extrinsic allergic alveolitis in the tobacco industry.Occupational and Environmental Medicine, 1984
- Indoor Air Pollution: A Public Health PerspectiveScience, 1983
- Fungi as a Cause of Allergic DiseaseAllergy, 1979
- Assessing fungus prevalence in domestic interiorsJournal of Allergy and Clinical Immunology, 1975
- Fungus aerosols arising from cold-mist vaporizersJournal of Allergy and Clinical Immunology, 1974