Georgia Tech Develops Model for Chemical Vapor in Confined Spaces
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Atlanta — Researchers from Georgia Tech have developed a computer model to estimate chemical-vapor buildup in confined spaces after on-the-job chemical spills, according to Safety+Health Magazine.
Study Background
A team drew on experiences from a course in which students aimed to close a gap between research labs and reality. They outlined their methods in a study published in the journal ACS Chemical Health & Safety. Jenny Houlroyd, study co-author and occupational group health manager, stated that safety data is needed right away when chemical spills occur.
Simulation Methods
The group simulated how chemicals spread and evaporate after spilling in enclosed environments such as tanker trucks. They selected the carcinogenic chemical benzene and input information into an open-source software program. The simulations accounted for various factors to determine the time required for vapors to reach certain heights depending on whether a person was crouching or standing.
Model Capabilities and Limitations
Findings show that the model can provide conservative and precise time-resolved estimates of chemical vapors in confined spaces, according to Safety+Health Magazine. John Pederson, study co-author and doctoral student in chemistry, stated that the work addresses gaps in modeling chemical exposure in environments found in transportation, agriculture and sanitation. The researchers said the method should be regarded as a complement, not a replacement, to physical chemical sampling devices. Working with paints, coatings, cleaning solutions and other solvents presents a risk of acute or chronic exposure.
Planned Application
The team intends to create a mobile app to make the model useful and widely available for safety professionals and practitioners, according to Safety+Health Magazine.
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