Abstract

TOLOZA, Deisy Lisseth  and  LIZARAZO, Luz Marina. MICROBIAL QUALITY OF ENVIRONMENT AT ALFONSO PATIÑO ROSSELLI LIBRARY, TUNJA-BOYACÁ (COLOMBIA). rev.udcaactual.divulg.cient. [online]. 2013, vol.16, n.1, pp.43-52. ISSN 0123-4226.

Air quality of indoor environments can be influenced by the presence of biotic and abiotic agents such as microorganism, spores, acari, and pollen, natural components in these environments, which can be transported from the outdoor air by dust particles.. The microorganisms present in the environment of the Library Alfonso Patiño Rosselli, Tunja (Boyacá) were evaluated and it was determinated which of the isolated fungal genera could represent risk of biodeterioration on the documents. The open Petri dish sedimentation method was employed for the microbiological sampling, using Sabouraud Agar for fungi isolation and Nutrient Agar for bacteria, whereas for sampling of documents, the Potato Dextrose Agar as culture media was utilized. In the environment, the highest diversity was represented by fungi with 23 isolated genera, predominating Cladosporium spp., whereas yeasts were less representative, with Geotrichum the predominant genus. Regarding bacterial forms, Gram positives were the most abundant, being Staphylococcus the most prevalent genus of the 13 identified ones, with respect to three genera of Gram negative. On books, Aspergillus spp., and Penicillium spp. were the predominant fungi. Microbial concentration of environment was high, but within the limit of sanity of public places to be considered as not contaminated; however, it is important to establish control measures of these microbial populations and the environmental conditions that could favor its development.

Keywords : Aerobiology; microbial quality; respiratory diseases; library microorganisms.

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