Nivel de contaminación microbiana del aire en un taller agroindustrial y sus posibles riesgos laborales

Holanda Teresa Vivas Saltos; Sulay Katherine Marcillo García; Diana Margarita Zambrano Zambrano; María Fernanda Pincay Cantos; José Manuel Calderón Pincay

doi:10.46380/rias.vol5.e253

Authors

Holanda Teresa Vivas Saltos Escuela Superior Politécnica Agropecuaria de Manabí Manuel Félix López, Ecuador
Sulay Katherine Marcillo García Escuela Superior Politécnica Agropecuaria de Manabí Manuel Félix López, Ecuador
Diana Margarita Zambrano Zambrano Escuela Superior Politécnica Agropecuaria de Manabí Manuel Félix López, Ecuador
María Fernanda Pincay Cantos Escuela Superior Politécnica Agropecuaria de Manabí Manuel Félix López, Ecuador https://orcid.org/0000-0001-8431-4418
José Manuel Calderón Pincay Escuela Superior Politécnica Agropecuaria de Manabí Manuel Félix López, Ecuador https://orcid.org/0000-0001-8400-4938

DOI:

https://doi.org/10.46380/rias.vol5.e253

Keywords:

bacterium, diseases, enterobacter, microbiological contamination

Abstract

The purpose of this research was to identify the bacteria present in the surrounding air of an agro-industrial workshop and their possible occupational risks. We proceeded to characterize the activities that take place in the workshop, located in Bolívar canton, Manabí province, Ecuador, through the application of semi-structured interviews and direct observation. Subsequently, the degree of bacterial contamination was determined by applying environmental monitoring; two samplings were carried out at seven points. Bacterial collection was performed by gravity sedimentation. To determine the possible diseases that these can cause, the collected microorganisms were identified using Petrifilm Staph Express agar for Staphylococcus aureus and crystal violet-red neutral-bilid-glucose agar for Enterobacteriaceae. The highest microbial load was found in the office with 270 CFU/m³ of air. Sampling 1 reached up to 848 CFU/m³, being considered contaminated, and in sampling 2 the bacterial load was 550 CFU/m³, resulting in little contamination. There are no strains of Staphylococcus aureus, although there is a presence of Enterobacter aeroneges in the raw material entry and ice storage areas. For this reason, it was concluded that, if there are no adequate hygiene measures, the personnel is susceptible to contracting infections due to Enterobacter aeroneges.

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