Lateral fungal spore movement inside a simulated wall |
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Authors: | Brad Muise Dong-Chul Seo |
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Institution: | (1) Applied Health Science Department, School of Health, Physical Education and Recreation, Indiana University, HPER Building, Room 116, 47405 Bloomington, IN, USA;(2) Applied Health Science Department, School of Health Physical Education and Recreation, Indiana University, HPER Building, Room 028, 47405 Bloomington, IN, USA |
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Abstract: | Moisture inside walls can facilitate mold growth if left untreated. Once spores become airborne they may interact with pressures
inside walls. Two laboratory experiments were conducted to determine if airborne spores have the potential to migrate laterally
inside walls with and without wiring installations. A simulated wall was fabricated, and Penicillium chrysogenum spores were aerosolized into a distant stud bay and an adjacent stud bay. The wall was subjected to a typical indoor pressure.
Spore levels inside the bays were sampled, and a total of 36 trials (n = 36) were conducted. Results of Kruskal–Wallis tests revealed that spore levels inside the sampling bay and the distant
bay with wiring installations were not significantly different. Spore levels inside the sampling bay were significantly lower
than the adjacent bay without wiring installations (P < 0.05). The findings of the study suggest airborne fungal spores have the potential to move laterally inside walls. |
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Keywords: | Airborne spores Fungal spores Indoor air quality Interior wall Mold |
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