Avaliação da qualidade do ar e pesquisa de fungos em uma clínica de hemodiálise no município de Caicó - RN.

Abstract

Airborne fungi have the ability to release into the environment their reproductive structures called spores, which are transported by the air and when they find a suitable area, they deposit, colonize, and reproduce. Given the facts, this study aimed to analyze the air quality and research the fungal microbiota of a hemodialysis clinic located in Rio Grande do Norte. For this, the spontaneous sedimentation method was used for the deposition of these spores in Petri dishes with Sabouraud dextrose Agar culture medium, which were exposed in the places for 15 minutes, and incubated at 28°C for up to 14 days. After this period, colonies were counted, picked and identified macro and microscopically using the microculture technique. With the identification it was possible to notice the presence of the filamentous fungi Cladosporium spp. (42.85%) which had the highest prevalence, Aspergillus spp. (7.14%), Bipolaris spp. (3.54%), and Mycelia sterilia (3.57%), in addition to a number of yeasts (42.85%) whose genera were not identified. In addition, an equation was used to measure air quality, and it can be seen that the maximum amount of CFU/m3 found and the I/E ratio were within the limits established by ANVISA. Therefore, it is possible to conclude that the conduct adopted by the institution is leading to good results in terms of indoor air quality.