Journal of Pure and Applied MicrobiologyVol. 9 No. Special Edition Nov. 2015

Fungal Characterization of the Air Outdoor and Indoor in Five Areas of the City of Puebla-Mexico

Merino-Guzman G.1, Castaneda-Roldan E.I.2, Huerta-Lara M.3, Munoz-Garcia A.4, Lopez-Olguin J.F.1 and Romero-Arenas O.1*

1Centro de Agroecologia, Instituto de Ciencias, Benemerita Universidad Autonoma de Puebla (BUAP), Mexico. 2Centro de Investigaciones en Ciencias Microbiologicas. Instituto de Ciencias-BUAP 3Departamento de Desarrollo Sustentable. Instituto de Ciencias-BUAP. 4Centro de Detecci?n Biomolecular. Instituto de Ciencias-BUAP.

Received on 23 September 2015 and accepted on 07 November 2015

 

ABSTRACT

The presence of filamentous fungi as aerosols in the atmosphere outside and inside is a risk to human health and determines air quality. This study aimed to identify the genres of the population of filamentous fungi in indoor and outdoor air of the north, northeast, central, south and southeast of the city of Puebla-Mexico, including buildings of two universities located within these areas during the four seasons of a year. It has been made air monitoring with a volumetric meter ?Microflow? and Rodac plates, containing selective media for filamentous fungi. In each selected point they filtered 0.25 m3 of air by 1.48 minutes. It isolated and identified eleven genera of filamentous fungi in indoor and outdoor air of the la city of Puebla-Mexico, being the predominant genre Aspergillus sp with 40.3%, followed by Alternaria 11.25%, Stachibotrys 9.64% and Penicillium with 7.66%. Most colony forming units (CFU) of filamentous fungi were detected in summer with an average temperature of 23 ?C and a humidity on 59.33%. The southern region recorded the highest load of filamentous fungi with respect to other areas, due to the emission of aerosols of the Atoyac River, an open and adjacent tributary to the urban area.

Keywords : Filamentous fungi, colony forming units (CFU), Environment and air quality.