Indoor-outdoor fungal-aerosols ratios of domestic homes in Merida, Mexico
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| Formato: | Artículo científico |
| Lenguaje: | en |
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Universidad Autónoma de Yucatán
2010
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| _version_ | 1876437886214078464 |
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| author | C. Ponce-Caballero |
| author_facet | C. Ponce-Caballero |
| contents | Indoor-outdoor fungal-aerosols ratios of domestic homes in Merida, Mexico C. Ponce-Caballero I. M. Cerón-Palma M. López-Pacheco M. Gamboa-Marrufo C. Quintal-Franco Computación fungi bacteria indoor air Bioaerosols mould problem The aim of this study was to establish the relation between indoor and outdoor fungal aerosols in domestic homes in Merida, Yucatan, Mexico. Air samples were collected, using the 6-stage Andersen impactor, inside and outside thirty domestic homes. The humidity and the temperature are factors that affect the development of fungi. The relative humidity varied from 32 to 93% outdoors and from 40 to 70% indoors; while the temperature varied from 14 to 34°C and from 18 to 29°C, respectively. The relative humidity during the monitored period was close to the ideal conditions for the development and growth of fungal spores. Sixteen fungal species were isolated from these samples. The main species found were Cladosporium spp., Fusarium spp., Acremonium spp., Alternaria spp., and Bipolaris spp. Cladosporium was present inside 53% of the homes studied and 70% of their outdoors. The second most common fungal species was Fusarium, present in 43% of the indoors and 14% of the outdoors. It was found that indoor and outdoor fungal concentrations ranged from 264 to 17788 CFU/m3 and from 123 to 5771 CFU/m3, respectively. Breathable fungal particles amounted to approximately 79-98% of the total fungal oncentrations. The percentage of breathable fungi is generally not dependent on the type of home (1 or 2 stories) or their orientation. Most of the indoor-outdoor ratios were close to one. Higher indoor concentration levels in the I/O ratio observed for airborne fungi in four houses were associated with indoor sources and the ratios lower than 1 were related with higher penetration of fungal spores from outdoor to indoor environment. 2010 artículo científico 1665-529X https://www.redalyc.org/articulo.oa?id=46715742005 en http://www.redalyc.org/revista.oa?id=467 Ingeniería application/pdf Universidad Autónoma de Yucatán Ingeniería (México) Num.3 Vol.14 |
| format | Artículo científico |
| id | redalyc_46715742005 |
| institution | Redalyc |
| language | en |
| publishDate | 2010 |
| publisher | Universidad Autónoma de Yucatán |
| spellingShingle | Indoor-outdoor fungal-aerosols ratios of domestic homes in Merida, Mexico C. Ponce-Caballero Computación fungi bacteria indoor air Bioaerosols mould problem Indoor-outdoor fungal-aerosols ratios of domestic homes in Merida, Mexico C. Ponce-Caballero I. M. Cerón-Palma M. López-Pacheco M. Gamboa-Marrufo C. Quintal-Franco Computación fungi bacteria indoor air Bioaerosols mould problem The aim of this study was to establish the relation between indoor and outdoor fungal aerosols in domestic homes in Merida, Yucatan, Mexico. Air samples were collected, using the 6-stage Andersen impactor, inside and outside thirty domestic homes. The humidity and the temperature are factors that affect the development of fungi. The relative humidity varied from 32 to 93% outdoors and from 40 to 70% indoors; while the temperature varied from 14 to 34°C and from 18 to 29°C, respectively. The relative humidity during the monitored period was close to the ideal conditions for the development and growth of fungal spores. Sixteen fungal species were isolated from these samples. The main species found were Cladosporium spp., Fusarium spp., Acremonium spp., Alternaria spp., and Bipolaris spp. Cladosporium was present inside 53% of the homes studied and 70% of their outdoors. The second most common fungal species was Fusarium, present in 43% of the indoors and 14% of the outdoors. It was found that indoor and outdoor fungal concentrations ranged from 264 to 17788 CFU/m3 and from 123 to 5771 CFU/m3, respectively. Breathable fungal particles amounted to approximately 79-98% of the total fungal oncentrations. The percentage of breathable fungi is generally not dependent on the type of home (1 or 2 stories) or their orientation. Most of the indoor-outdoor ratios were close to one. Higher indoor concentration levels in the I/O ratio observed for airborne fungi in four houses were associated with indoor sources and the ratios lower than 1 were related with higher penetration of fungal spores from outdoor to indoor environment. 2010 artículo científico 1665-529X https://www.redalyc.org/articulo.oa?id=46715742005 en http://www.redalyc.org/revista.oa?id=467 Ingeniería application/pdf Universidad Autónoma de Yucatán Ingeniería (México) Num.3 Vol.14 |
| title | Indoor-outdoor fungal-aerosols ratios of domestic homes in Merida, Mexico |
| topic | Computación fungi bacteria indoor air Bioaerosols mould problem |
| url | https://www.redalyc.org/articulo.oa?id=46715742005 |