El estudio tuvo como objetivos la caracterizacion de la microbiota aerea del local para evaluar el riesgo potencial de biomicrodeterioro de colecciones documentales de valor patrimonial. Se realizo a traves del metodo de sedimentacion y pruebas fisiologicas cualitativas que permitieron conocer la actividad biodeteriogena de la micobiota aislada, teniendo en cuenta el papel de los hongos en el biodeterioro colecciones de naturaleza organica. Se demostro una fuerte correlacion positiva entre temperatura (T) y humedad relativa (HR) respecto a la concentracion fungica del aire y la concentracion microbiana fue significativamente superior en epoca de lluvia, con una mayor concentracion de bacterias en ambos muestreos. Segun los criterios de Omeliansky el ambiente estaba altamente contaminado en epoca lluviosa para hongos y bacterias, mientras en epoca de seca no presentaba contaminacion fungica. En ambos muestreos predominaron representantes de los generos Aspergillus, Penicillium y Cladosporium, y bacterias Gram positivas. Los aislados fungicos con mayor densidad relativa mostraron un elevado poder de deterioro, que destaca la necesidad del control de los parametros climaticos como mejor metodo de control del biodeterioro de bienes patrimoniales.

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Evaluación aeromicrobiológica del depósito del Centro de Documentación del Museo Nacional de la Música de Cuba

Cladosporium, penicillium ir aspergillus genčių grybų paplitimas gyvenamosiose patalpose

The aim of this investigation was to monitor the densities and distribution of indoor airborne fungal spores that can cause an allergic response in three educational institutions placed in different location of Iasi City, Romania. Areas monitored were two lecture halls and one laboratory from the university campus, one classroom from a primary school and one from high school. Air samples from all location were taken using the Koch sedimentation method, which suppose that Petri dishes which contained potato-dextrose-agar (PDA) and peptone-glucose-agar (PGA) media in three different compositions (classic, with rose-bengal and with streptomycin) are exposed to room air for a 5-min period. Samples were collected from April to May 2009. A total of 333 microfungal colonies were counted on 90 plates. Identification of these showed 11 genera and 10 colonies of indeterminate spores from the indoor air samples. The identification of the fungi was made according to their microscopic properties and through references. The results showed that in all three locations were differences in the distribution of fungal genera, but Penicillium, Cladosporium and Aspergillus were the most prevalent fungal genera (43.8, 22.2 and 18.0% of the total, respectively). Indoor concentration of fungal spores in the university laboratory and high school classroom were found to be higher as the international standards and has potential to develop adverse health effects to the occupants.

N. Irimia

Papers

Survey of indoor airborne fungi in different educational institutions from Iasi, România.