Air sampling of fungal spores on filters. An investigation on passive sampling and viability
N?sman, ?., Blomquist, G. and Levin, J.
1999
Journal of Environmental Monitoring1 (4), 361 - 365
N?sman, ?., Blomquist, G. and Levin, J., (1999), "Air sampling of fungal spores on filters. An investigation on passive sampling and viability", Journal of Environmental Monitoring1 (4), 361 - 365.
| Abstract: |
| In this study, glycerol was tested as a collection substrate for passive bioaerosol sampling. Filters (mixed cellulose acetate and nitrate) were soaked in glycerol and exposed for an aerosol from three different fungal species: Penicillum commune, Aspergillus versicolor and Paecilomyces variotii. The passive sampling method was compared with a closed-face polycarbonate filter sampling method. Exposure was performed in an exposure chamber. The total number of spores was determined by microscopic techniques, and the cultivable number was determined by cultivation on Malt Extract Agar dishes. The glycerol soaked filter demonstrated a good correlation with the closed-face sampler with regard to the total count. Spores stored in a pumped filter cassette were not affected by storage for up to 7 days. On the other hand, the culturability of the spores was markedly decreased after 1 day when stored on glycerol soaked filters. |
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