Propuesta de medidas de control para el riesgo de inhalación de polvo de madera en la carpintería de la Escuela Politécnica Nacional.

Abstract

The objective of this work was to analyze the risk factors of inhaling wood dust from the carpentry of the National Polytechnic School, then determine the concentration of the contaminant to establish the level of risk and finally propose control measures to reduce the level risky. The analysis of the risk factors and the specific measurements allowed to determine that the cutting and sanding areas are the ones that generate the greatest amount of wood dust. The measurements carried out with the personal sampler allowed to find the concentration of the contaminant, as well as the daily exposure, after this, the comparison was made with the limit values of environmental exposure for the contaminant and it was concluded that there is a "nonconformity", in addition to have a high level of risk. The UNE-EN 689:2019+AC 2019 standard defined the main guidelines to be able to carry out the analysis of risk factors and the measurement of exposure to the chemical agent under study. Among the proposals for control measures, a localized extraction ventilation system was designed, and its respective simulation was also carried out. The simulation of the extraction system had satisfactory results regarding the design calculations, as well as the extraction of the particles that ensures the reduction of the wood dust generated in the Carpentry. For the use of PPE, respiratory and eye protection equipment was analyzed. The administrative measures, for their part, focused on signage and cleaning of the workshop.