Improving the accuracy of work hygiene models used to estimate occupational exposure to solvent vapors Abstract More than 320,000 Québec workers are exposed to solvents at work and may develop occupational diseases related to overexposure.Despite recent substitution developments, occupational exposure to solvents remains a major issue for occupational health and safety (OHS) specialists. Occupational hygienists use models to estimate occupational exposure to chemicals, a fast and inexpensive approach if they are well understood. The models are often simplified to take account of a limited number of parameters, which may be problematic, particularly for solvent mixtures.The purpose of this project is to improve the accuracy of models used to estimate exposure to solvent vapours by correcting two major limitations: failure to take account of nonideality for mixtures and the simplifying assumptions used in some models. Produced Under this Project Scientific Reports Improving the Accuracy of Occupational Health and Safety Models Used to Estimate Worker Exposure to Solvent Vapours Research Report: R-1077, R-1077-en Scientific Publications Estimation des expositions professionnelles à des vapeurs de solvants: comparaison entre les logiciels Industrial Hygiene Modeling (IGMOD) et Fire Dynamics Simulator (FDS)Courchesne W., Hallé S., Ali Bahloul, Castro Ruiz C. A., Debia M.Source : Communication présentée à Ton expertise en prévention ... j'aime - Congrès de l'Association québécoise pour l’hygiène, la santé et la sécurité du travail, St-Sauveur, Canada.Modeling occupational exposure to solvent vapors using the Two-Zone (near-field/far-field) model: A literature reviewAbattan S. F., Lavoué J., Hallé S., Ali Bahloul, Drolet D., Debia M.Source : (2021). Journal of Occupational and Environmental Hygiene. doi: 10.1080/15459624.2020.1861283Predicting first-order evaporation rate constant alpha (α) from small spills of organic solvents in a controlled environmentAbattan S. F., Lavoué J., Hallé S., Ali Bahloul, Drolet D., Debia M.Source : (2022). Journal of Occupational and Environmental Hygiene, 19(4), 210-222. doi: 10.1080/15459624.2022.2040736Estimating evaporation rates and contaminant air concentrations due to small spills of non-ideal aqueous organic solvent mixtures in a controlled environmentAbattan S. F., Ryan P. E., Lavoué J., Hallé S., Ali Bahloul, Drolet D., Debia M.Source : (2023). Journal of Occupational and Environmental Hygiene, 20(2), 95-108. doi: 10.1080/15459624.2022.2150769 Other Project(s) You May be Interested in The prevention of poisoning in forage silosTower silo ventilation taking the chute into considerationExploratory Study on Worker Exposure to Ultrafine Particles and VOCs Released During 3D Printing Additional Information Type: Project Number: 2012-0044 Status: Completed Year of completion: 2019 Research Field: Chemical and Biological Hazard Prevention Team: Maximilien Debia (Université de Montréal)Stéphane Hallé (École de technologie supérieure)Ali Bahloul (IRSST)Daniel Drolet (IRSST)Jérôme Lavoué (Université de Montréal)