Impact of microbiological quality of outside air in the internal environment of four laboratories of public institutions in the city of Guatemala and Barcenas, Villa Nueva.
Keywords:
aerobiology, microbiological air quality, bacterial load, fungical load, aeroscopeAbstract
Abstract
A research regarding the microbiological air quality was done in four laboratories, three of them were locatedin Guatemala city - Laboratorio Microbiológico de Referencia (LAMIR), Laboratorio de Análisis Fisicoquímicoy Microbiológico (LAFYM), Laboratorio de la Empresa Municipal de Agua (EMPAGUA) -and one in thetown of Barcenas Villa Nueva - Laboratorio de la Autoridad en el Manejo Sustentable del Lago de Amatitlán(AMSA) -. The results were obtained using the volumetric method by impaction using a monthly samplingbiocolector in the months October 2,008 to March 2,009. The highest fungal load in the indoor environmentwas presented by the laboratory of EMPAGUA (8100 UFC/m3), meanwhile in the outdoor environment wasthe AMSA laboratory (14460 UFC/m3). The AMSA laboratory showed the highest bacteriological load, bothindoor and outdoor (2630 UFC/m3 and 6780 UFC/m3 respectively). This values were found to be over theregulation applied by the OSHA for the fungical load (2000 UFC/m3) and the bacterial load (1000UFC/m3).Seventeen fungal genera were isolated and characterized; Cladosporium, Penicilliumand Aspergillusdominated in the course of the six monthly samplings, and 40 bacteriological genera were isolated andcharacterized: Staphylococcus and Bacillus were the dominating genera.
Key Words:
Aerobiology, Microbiological air quality, bacterial load, fungical load, aeroscope
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