evaluación de la exposición inhalatoria a agentes químicos en trabajadores de la construcción mediante el método cualitativo simplificado del inrs.

Abstract

The construction industry is a sector with high risk rates due to the nature of the activities and the chemical agents that are handled; For this reason, it is essential to guarantee the safety and health of workers to ensure their productivity and avoid occupational accidents and illnesses. The objective of this work is to evaluate the inhalation exposure of chemical agents to which workers in a company in the construction sector are exposed with the NTP 937 standard based on the simplified qualitative method of the INRS. For the development of this study, the descriptive type of research was used, accompanied by on-site visits, documentary review and observation to obtain data for its development. The methodology used to evaluate inhalation exposure is NTP 937, which is based on the INRS method and carries out the evaluation based on 5 variables: Potential risk class, volatility or dust class, work procedure class, collective protection class and the correction factor for environmental limit values. The results of the evaluation allowed us to determine that PVC thinner and glue are the agents with the lowest risk score with an action priority level 3, which represents a low risk. Cement, paint, bondex, bentocryl, fillings and solder have a score between 350 and 1000, which represents an action priority level 2 with a moderate risk that requires the application of corrective measures and a more detailed evaluation. Finally, control measures were proposed to improve working conditions and environments, carried out in accordance with the provisions of the NTP 872 standard and which included the use of personal protective equipment (PPE) with filters according to the agent used, regular cleaning of the equipment and the development of training for workers on the danger of the agents, how to handle them safely and how to use preventive measures appropriately and exhaustive training on the use and maintenance of PPE.