1. Evaluación de la efectividad de sistemas de extracción de humos en soldadura por arco.
- Author
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ROJAS ALEJANDRO, FRANCISCO JAVIER, ZINGG ROSELL, AUGUSTO FELIPE, VÁSQUEZ ROMERO, ISSAAK RAFAEL, and BUENDÍA MOLINA, MARILYN AURORA
- Subjects
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ELECTRIC welding , *THRESHOLD limit values (Industrial toxicology) , *INDUSTRIAL hygiene , *CARBON monoxide , *VOLATILE organic compounds , *GASWORKS , *OCCUPATIONAL exposure , *FORMALDEHYDE , *WELDING , *INDUSTRIAL safety , *FUME control - Abstract
This study focused on evaluating the effectiveness of various welding processes in reducing volatile gas emissions in work environments, a crucial factor for occupational health and safety. Comparative tests were carried out on three common welding processes: SMAW, GMAW and GTAW, with a focus on the concentration of formaldehyde and other volatile organic compounds (VOCs) in the air. The results revealed high statistical significance between treatments, confirming substantial differences in VOC emissions. The Tukey test identified the GTAW (TIG) process as the most efficient, with a concentration of total volatiles of 0.0557 mg/m?, well below the threshold of 0.2 mg/m?, where it is expected that no irritation or symptoms of discomfort. In contrast, the SMAW and GMAW processes showed concentrations that could lead to irritation or discomfort. Choosing the appropriate welding process is revealed as a critical factor in reducing VOC emissions and protecting workers' health. VOCs, including formaldehyde and carbon monoxide, can have adverse health effects on workers, and compliance with occupational exposure limits is essential. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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